13(x-9)=-4(x-9)

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Solution for 13(x-9)=-4(x-9) equation:


Simplifying
13(x + -9) = -4(x + -9)

Reorder the terms:
13(-9 + x) = -4(x + -9)
(-9 * 13 + x * 13) = -4(x + -9)
(-117 + 13x) = -4(x + -9)

Reorder the terms:
-117 + 13x = -4(-9 + x)
-117 + 13x = (-9 * -4 + x * -4)
-117 + 13x = (36 + -4x)

Solving
-117 + 13x = 36 + -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.
-117 + 13x + 4x = 36 + -4x + 4x

Combine like terms: 13x + 4x = 17x
-117 + 17x = 36 + -4x + 4x

Combine like terms: -4x + 4x = 0
-117 + 17x = 36 + 0
-117 + 17x = 36

Add '117' to each side of the equation.
-117 + 117 + 17x = 36 + 117

Combine like terms: -117 + 117 = 0
0 + 17x = 36 + 117
17x = 36 + 117

Combine like terms: 36 + 117 = 153
17x = 153

Divide each side by '17'.
x = 9

Simplifying
x = 9

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