4x-(9x-100)=180

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Solution for 4x-(9x-100)=180 equation:


Simplifying
4x + -1(9x + -100) = 180

Reorder the terms:
4x + -1(-100 + 9x) = 180
4x + (-100 * -1 + 9x * -1) = 180
4x + (100 + -9x) = 180

Reorder the terms:
100 + 4x + -9x = 180

Combine like terms: 4x + -9x = -5x
100 + -5x = 180

Solving
100 + -5x = 180

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -5x = 180 + -100

Combine like terms: 100 + -100 = 0
0 + -5x = 180 + -100
-5x = 180 + -100

Combine like terms: 180 + -100 = 80
-5x = 80

Divide each side by '-5'.
x = -16

Simplifying
x = -16

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