First, we should find the expression for the number of units produced by Factory B. Since Factory B produces six more than twice the units produced by Factory A, the expression looks like this: 2(x-7)+6.
Now, we can add them together and set them equal to their total output to solve the problem.
(x+7)+2(x+7)+6=177
We solve this equation to find what x equals.
x+7+2x+14+6=177
3x+21+6=177
3x+27=177
3x=177-27
3x=150
x=50
