Wednesday
April 1, 2015

Homework Help: algebra1

Posted by unknown on Wednesday, March 21, 2007 at 6:19pm.

could you walk-through the steps to solving this problem because I am stuck;
3x-5(3x-7)=2(x+9)+45

Let me know if you have a question in any step.

3x-5(3x-7)=2(x+9)+45
3x-15x+35= 2x+18+45
-12x+35 = 2x+63
-35 -35
-12x= 2x +63-35
-12x= 2x +28
-2x -2x

-12x-2x = 28

-14x= 28
-14x/-14= 28/-14
x = -2

to check just substitute the answer for x to ever x in the original problem.

3x-5(3x-7)=2(x+9)+45

3(-2)-5(3(-2)-7)=2(-2+9)+45
-6 -5 (-6-7)= 2(7)+45
-6-5(-13)=14+45
-6+65=59
59=59 it checks.


You really helped me out. I know see how to work out other problems like this one. Thank you very much!!!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

algbrea - 3x-5(3x-7)= 2(x+9) + 45 3x-15x+35= 2x+18 +45 -12x + 35 = 2x+63 -12x -...
math - My problem I have involves a method that requires using the quadratic ...
Math - Can you correct the errors? 4(x+3)=24 4(3x)=24 12x=24 12x/12= 24/12 X=2 5...
bobpursly, - Is this correct now after i revised it Multiply. 3xy^2(5xy-4x+6y) ...
algebra - 24x^4-12x^3+48x^2/-4x 24x^4-12x^3+12(-1) 24x^4-12x^3+(-12x) 2x^4-12x^3...
math - how do i do x2+12x+32 x2+12x = 14x+32 subtract 14x from each side 14x=32 ...
Polynomial Fucntion Problem - Could you help me with the following problem, I ...
Algebra - I have worked this and checked it and it does not come out true any ...
Math - you know that 8x = 5y you know that 3y=14z since 5 = (5/3)*3, 5y = (5/3...
algebra2 - 1/3 - 5/6 = 1/X SOLVE 1/3 - 5/6 = 1/X Let's remove the denominators ...

Members