Friday

February 27, 2015

February 27, 2015

Posted by **anon** on Friday, February 11, 2011 at 4:50pm.

5(2y+1)-(5y-2)

answer=5y+7.

thanks so much!

- gr.10 math -
**Christina**, Friday, February 11, 2011 at 6:42pmOkay, so with the first part, 5(2y+1), you distribute the 5 to BOTH parts of what is inside the parentheses, so you have 5(2y) + 5(1). That gives you 10y + 5.

Now, for the second part of the equation. When you have that negative in front of that parentheses, that means you have to distribute it to BOTH parts of what is inside the parentheses. So, you have -(5y)and -(-2). So, you have -5y and 2. (Two negatives equals a positive, and multiplying by a negative is like multiplying by -1.

Now you have 10y + 5 + 2 - 5y

Add like terms, and you get 5y + 7.

Hope that helped!

**Answer this Question**

**Related Questions**

PLEASE HELP ME! PLEASE! - 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y...

8th Grade Algebra- Answer Check - Solve each system of equations, give the ...

6th grade math - Find the value fir each expression. Show your work. (13.28 - 7....

Algebra - - ok... we keep getting this one wrong: Solve the following equation ...

algebra - Solve for s in this equation. Depreciation. D=C-s/n This is my answer ...

Math - Hi, I am getting very frustrated. I am doing an online homework for ...

MATH! - plz how do you solve these?- i keep getting the wrong answer 1. 3z/2 - ...

Math - Could someone please help me. Solve the linear equation by substitution. ...

math - 4m+9+5m-12= 42 my question is how to get m=5 (the answer) can u show me ...

math 12 - i got the wrong answer from the back, and i know that imnot dooing it ...