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!!!

No one has answered this question yet.

Answer this Question

Related Questions

Math - 3x-4 to y+15 is constant and y=3 when x=2 then when y=12, x equals? My ...
math,help,factoring - i need help i don't know how to do the next step. ...
Algebra - (3x+4)/(3x-4)+(3x-4)/(3x+4) --------------------------- Divide top by ...
algebra1 - How do i solve this problem? 2(x-3)-3(x+5)=3(x-2)-7 what are the ...
Algebra1 - I am solving for linear equations and I'm wondering if I did Step...
algebra - what is an equation of the line that passes through the point (4,-6) ...
math,correction - Problem #1 subtract. Express your answer in simplest form (3x...
Math - I'm having problems solving for an equation with a single variant. ...
Economics - Ive been stuck on this forever now if someone could please walk me ...
Math - I have to solve the system. 3x + y = 12 y = 9 - 3x I used the ...

For Further Reading

First Name:
School Subject:
Answer: