9x-2x=15-9(-x-4)

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Solution for 9x-2x=15-9(-x-4) equation:


Simplifying
9x + -2x = 15 + -9(-1x + -4)

Combine like terms: 9x + -2x = 7x
7x = 15 + -9(-1x + -4)

Reorder the terms:
7x = 15 + -9(-4 + -1x)
7x = 15 + (-4 * -9 + -1x * -9)
7x = 15 + (36 + 9x)

Combine like terms: 15 + 36 = 51
7x = 51 + 9x

Solving
7x = 51 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
7x + -9x = 51 + 9x + -9x

Combine like terms: 7x + -9x = -2x
-2x = 51 + 9x + -9x

Combine like terms: 9x + -9x = 0
-2x = 51 + 0
-2x = 51

Divide each side by '-2'.
x = -25.5

Simplifying
x = -25.5

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