3(30-x)=3(x-10)

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Solution for 3(30-x)=3(x-10) equation:


Simplifying
3(30 + -1x) = 3(x + -10)
(30 * 3 + -1x * 3) = 3(x + -10)
(90 + -3x) = 3(x + -10)

Reorder the terms:
90 + -3x = 3(-10 + x)
90 + -3x = (-10 * 3 + x * 3)
90 + -3x = (-30 + 3x)

Solving
90 + -3x = -30 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
90 + -3x + -3x = -30 + 3x + -3x

Combine like terms: -3x + -3x = -6x
90 + -6x = -30 + 3x + -3x

Combine like terms: 3x + -3x = 0
90 + -6x = -30 + 0
90 + -6x = -30

Add '-90' to each side of the equation.
90 + -90 + -6x = -30 + -90

Combine like terms: 90 + -90 = 0
0 + -6x = -30 + -90
-6x = -30 + -90

Combine like terms: -30 + -90 = -120
-6x = -120

Divide each side by '-6'.
x = 20

Simplifying
x = 20

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