Question

(7-8x)-(9-12x)+(5x+4)=-16

Answer 1

(7-8x)-(9-12x)+(5x+4)=-16
7-8x-9+12x+5x+4=-16
9x+2=-16
9x=-16-2
9x=-18
x=-18:9
x=-2

Answer 2

Let's solve the equation step by step:

(7-8x)-(9-12x)+(5x+4) = -16

First, let's simplify the equation by removing the parentheses:

7 - 8x - 9 + 12x + 5x + 4 = -16

Combine like terms:

(-8x + 12x + 5x) + (7 - 9 + 4) = -16

(-8 + 12 + 5)x + (7 - 9 + 4) = -16

9x + 2 = -16

Next, isolate the variable x. To do this, we'll move the constant term to the other side of the equation:

9x = -16 - 2

9x = -18

Now, divide both sides of the equation by 9 to solve for x:

x = (-18) / 9

x = -2

Therefore, the solution to the equation (7-8x)-(9-12x)+(5x+4) = -16 is x = -2.