# MAth

I keep getting -28/19 for this problem, but it doesn't check with the solution in the back of the book. Help please..

solve the equation

7d-(1/2)(2d-4)=(-5/4)(d+4)

1. 👍
2. 👎
3. 👁
1. 7 d - ( 1 / 2 ) ( 2 d - 4 ) = ( - 5 / 4 ) ( d + 4 )

7 d - ( 1 / 2 ) * 2 d - ( 1 / 2 ) * ( - 4 = ( - 5 / 4 ) * d + ( - 5 / 4 ) * 4

7 d - d + 2 = ( - 5 / 4 ) * d - 5

6 d + 2 = ( - 5 / 4 ) * d - 5

6 d + ( 5 / 4 ) d = - 5 - 2

( 24 / 4 ) d + ( 5 / 4 ) d = - 7

( 29 / 4 ) d = - 7 Multiply both sides by 4

29 d = - 28 Divide both sides by 29

d = - 28 / 29

1. 👍
2. 👎

## Similar Questions

1. ### chemistry

How much energy is evolved when 2.65 mg of Cl(g) atoms adds electrons to give Cl1-(g) ions. No clue how to go about solving this problem as it doesn't really relate to any of my examples in my text book or notes. All I can find

2. ### Career planning

Which of the following is an effective first reaction to a problem . A. Asking questions to help you understand the problem B. Deciding on a solution as quickly as possiable C. Finding someone else to handle the problem D.

3. ### Math

Check my answers please. 1)Which statement is an example of the Identity Property of Multiplication? a)8 • 0 = 0 b)8 • 1 = 8

4. ### Math

Hi! Okay so I started to attempt this math problem; 3cot^2x-1=0. However, I'm a little stuck. My teacher wants me to find the Location on The Unit Circle, Period, and General Solution. Can someone check what I have and help me

1. ### English-A Raisin in the Sun

What does Beneatha think about George Murchison in the book A Raisin in the Sun? Please check my answer: Is this correct: Beneatha prefers Asagai over George. She doesn't like some of the things George says. She argues with him

2. ### Algebra

I have a few questions that I need help with. Solve the radical equation, and check all proposed solutions. 5. x- square root 3x-2=4 I don't understand this problem. Solve and check the equation. 10. (x^2+14x+49)^3/4-20=7 would I

3. ### Social Studies

1.What is the problem you have identified? Be sure to include the nation(s) affected. 2. What supporting background information identifies the problem and provides supporting evidence that the problem exists? 3. What are the roles

4. ### Introduction to Graphic Design A

Hello! Thanks for checking my question out! ____ Last semester's geology class worked together to create a review sheet for the final exam. The review sheet contains information that covers 13 chapters worth of content along with

1. ### testing and selection of dogs

Please check this for me thanks A dog with strong nerves or good nerve strength is one that A. doesn't show fear reactions to unexpected noises, sights, or events. B. doesn't have a high-strung, nervous disposition. C. is

2. ### Introduction to Graphic Design A

Hello! Thanks for checking my question out! ____ Trenton has a new mp3 player. He loves that it’s so small and sleek. The little screen on the front tells him what song is playing and even what time it is. However, he's having

3. ### Chemistry

Just two more to check, thanks! 1) The pH of a 1.25 M solution of unknown monoprotic acid is 5.43. Determine the value of Ka for this acid. HX H+ + X-. (I obtain 1.0 x 10^-11) 2) Calculate the pH of a solution which is 0.73 M

4. ### question for Dr.Bob22

The mole fraction of acetic acid (CH3COOH) in an aqueous solution is 0.675. Calculate the molarity of the acetic acid, if the density of the solution is 1.0266 g mL-1. To give a different take on this, here is another way of