Answer:
-8
Explanation:
Distribute the 4 on the left side of the equation:
12x + 20 - 3 = 9x - 7
Combine like terms on both sides of the equation. In this case, combine the constants on each side:
12x + 17 = 9x - 7
Now, move the 9x term to the left side of the equation by subtracting 9x from both sides:
12x - 9x + 17 = -7
Simplify the left side by subtracting 9x from 12x, which gives you:
3x + 17 = -7
Finally, isolate the variable x by subtracting 17 from both sides:
3x = -7 - 17
3x = -24
To find the value of x, divide both sides by 3:
x = -24 / 3
x = -8