5(x-90)=2(x-90)+21

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Solution for 5(x-90)=2(x-90)+21 equation:


Simplifying
5(x + -90) = 2(x + -90) + 21

Reorder the terms:
5(-90 + x) = 2(x + -90) + 21
(-90 * 5 + x * 5) = 2(x + -90) + 21
(-450 + 5x) = 2(x + -90) + 21

Reorder the terms:
-450 + 5x = 2(-90 + x) + 21
-450 + 5x = (-90 * 2 + x * 2) + 21
-450 + 5x = (-180 + 2x) + 21

Reorder the terms:
-450 + 5x = -180 + 21 + 2x

Combine like terms: -180 + 21 = -159
-450 + 5x = -159 + 2x

Solving
-450 + 5x = -159 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-450 + 5x + -2x = -159 + 2x + -2x

Combine like terms: 5x + -2x = 3x
-450 + 3x = -159 + 2x + -2x

Combine like terms: 2x + -2x = 0
-450 + 3x = -159 + 0
-450 + 3x = -159

Add '450' to each side of the equation.
-450 + 450 + 3x = -159 + 450

Combine like terms: -450 + 450 = 0
0 + 3x = -159 + 450
3x = -159 + 450

Combine like terms: -159 + 450 = 291
3x = 291

Divide each side by '3'.
x = 97

Simplifying
x = 97

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