x+18=7x-84

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Solution for x+18=7x-84 equation:


Simplifying
x + 18 = 7x + -84

Reorder the terms:
18 + x = 7x + -84

Reorder the terms:
18 + x = -84 + 7x

Solving
18 + x = -84 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
18 + x + -7x = -84 + 7x + -7x

Combine like terms: x + -7x = -6x
18 + -6x = -84 + 7x + -7x

Combine like terms: 7x + -7x = 0
18 + -6x = -84 + 0
18 + -6x = -84

Add '-18' to each side of the equation.
18 + -18 + -6x = -84 + -18

Combine like terms: 18 + -18 = 0
0 + -6x = -84 + -18
-6x = -84 + -18

Combine like terms: -84 + -18 = -102
-6x = -102

Divide each side by '-6'.
x = 17

Simplifying
x = 17

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