SOLUTION: My son needs help with these two problems and I can't help him. -(x-4)=2x+6 and x+7=12+3x-7x

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: My son needs help with these two problems and I can't help him. -(x-4)=2x+6 and x+7=12+3x-7x      Log On


   

Question 342291: My son needs help with these two problems and I can't help him.
-(x-4)=2x+6
and
x+7=12+3x-7x
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-(x-4)=2x+6
---
-x+4 = 2x+6
Add x to both sides to get:
4 = 3x+6
Subtract 6 from both sides to get:
3x = -2
Divide both sides by 3 to get:
x = -2/3
===============
and
x+7=12+3x-7x
Simplify the right side.
x+7 = 12-4x
Add 4x to both sides to get:
5x+7 = 12
Subtract 7 from both sides to get:
5x = 5
Divide both sides by 5 to get:
x = 1
===============
Cheers,
Stan H.