129=-3(5+8x)

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Solution for 129=-3(5+8x) equation:


Simplifying
129 = -3(5 + 8x)
129 = (5 * -3 + 8x * -3)
129 = (-15 + -24x)

Solving
129 = -15 + -24x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '24x' to each side of the equation.
129 + 24x = -15 + -24x + 24x

Combine like terms: -24x + 24x = 0
129 + 24x = -15 + 0
129 + 24x = -15

Add '-129' to each side of the equation.
129 + -129 + 24x = -15 + -129

Combine like terms: 129 + -129 = 0
0 + 24x = -15 + -129
24x = -15 + -129

Combine like terms: -15 + -129 = -144
24x = -144

Divide each side by '24'.
x = -6

Simplifying
x = -6

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