SOLUTION: 3(x-4)-4=5x+6.9-3x

Algebra ->  Inverses -> SOLUTION: 3(x-4)-4=5x+6.9-3x      Log On


   



Question 256602: 3(x-4)-4=5x+6.9-3x
Found 2 solutions by drk, checkley77:
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
Here is the problem:
3%28x+-+4%29+-+4+=+5x+%2B+6.9+-3x
step 1 - distribute on the left side to get
3x+-+12+-+4+=+5x+%2B+6.9+-3x
step 2 - combine like terms on the left and right to get
3x+-+16+=+2x+%2B+6.9
subtract 2x to get
x+-+16+=+6.9
add 16 to get
x+=+22.9

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3(x-4)-4=5x+6.9-3x
3x-12-4=2x+6.9
3x-16=2x+6.9
3x-2x=6.9+16
x=22.9 ans.
Proof:
3(22.9-4)-4=5*22.9+6.9-3*22.9
3*18.9-4=114.5+6.9-68.7
56.7-4=52.7
52.7=52.7