5x-15=x+84

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Solution for 5x-15=x+84 equation:


Simplifying
5x + -15 = x + 84

Reorder the terms:
-15 + 5x = x + 84

Reorder the terms:
-15 + 5x = 84 + x

Solving
-15 + 5x = 84 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-15 + 5x + -1x = 84 + x + -1x

Combine like terms: 5x + -1x = 4x
-15 + 4x = 84 + x + -1x

Combine like terms: x + -1x = 0
-15 + 4x = 84 + 0
-15 + 4x = 84

Add '15' to each side of the equation.
-15 + 15 + 4x = 84 + 15

Combine like terms: -15 + 15 = 0
0 + 4x = 84 + 15
4x = 84 + 15

Combine like terms: 84 + 15 = 99
4x = 99

Divide each side by '4'.
x = 24.75

Simplifying
x = 24.75

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