84+x=(20+x)*3

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Solution for 84+x=(20+x)*3 equation:


Simplifying
84 + x = (20 + x) * 3

Reorder the terms for easier multiplication:
84 + x = 3(20 + x)
84 + x = (20 * 3 + x * 3)
84 + x = (60 + 3x)

Solving
84 + x = 60 + 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.
84 + x + -3x = 60 + 3x + -3x

Combine like terms: x + -3x = -2x
84 + -2x = 60 + 3x + -3x

Combine like terms: 3x + -3x = 0
84 + -2x = 60 + 0
84 + -2x = 60

Add '-84' to each side of the equation.
84 + -84 + -2x = 60 + -84

Combine like terms: 84 + -84 = 0
0 + -2x = 60 + -84
-2x = 60 + -84

Combine like terms: 60 + -84 = -24
-2x = -24

Divide each side by '-2'.
x = 12

Simplifying
x = 12

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