-12=-5(x-1)+9(x-5)

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Solution for -12=-5(x-1)+9(x-5) equation:


Simplifying
-12 = -5(x + -1) + 9(x + -5)

Reorder the terms:
-12 = -5(-1 + x) + 9(x + -5)
-12 = (-1 * -5 + x * -5) + 9(x + -5)
-12 = (5 + -5x) + 9(x + -5)

Reorder the terms:
-12 = 5 + -5x + 9(-5 + x)
-12 = 5 + -5x + (-5 * 9 + x * 9)
-12 = 5 + -5x + (-45 + 9x)

Reorder the terms:
-12 = 5 + -45 + -5x + 9x

Combine like terms: 5 + -45 = -40
-12 = -40 + -5x + 9x

Combine like terms: -5x + 9x = 4x
-12 = -40 + 4x

Solving
-12 = -40 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-12 + -4x = -40 + 4x + -4x

Combine like terms: 4x + -4x = 0
-12 + -4x = -40 + 0
-12 + -4x = -40

Add '12' to each side of the equation.
-12 + 12 + -4x = -40 + 12

Combine like terms: -12 + 12 = 0
0 + -4x = -40 + 12
-4x = -40 + 12

Combine like terms: -40 + 12 = -28
-4x = -28

Divide each side by '-4'.
x = 7

Simplifying
x = 7

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