To solve for x, we first need to combine like terms on both sides of the equation.
Adding 2x to both sides:
4x + 2x + 9 = -2x + 2x - 15
6x + 9 = -15
Subtracting 9 from both sides:
6x + 9 - 9 = -15 - 9
6x = -24
Dividing by 6 on both sides:
6x / 6 = -24 / 6
x = -4
Therefore, the solution to the equation 4x + 9 = -2x - 15 is x = -4.
4x+9=-2x-15
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