86-6x=7x+21

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Solution for 86-6x=7x+21 equation:


Simplifying
86 + -6x = 7x + 21

Reorder the terms:
86 + -6x = 21 + 7x

Solving
86 + -6x = 21 + 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.
86 + -6x + -7x = 21 + 7x + -7x

Combine like terms: -6x + -7x = -13x
86 + -13x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
86 + -13x = 21 + 0
86 + -13x = 21

Add '-86' to each side of the equation.
86 + -86 + -13x = 21 + -86

Combine like terms: 86 + -86 = 0
0 + -13x = 21 + -86
-13x = 21 + -86

Combine like terms: 21 + -86 = -65
-13x = -65

Divide each side by '-13'.
x = 5

Simplifying
x = 5

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