7=138-6x

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Solution for 7=138-6x equation:


Simplifying
7 = 138 + -6x

Solving
7 = 138 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
7 + 6x = 138 + -6x + 6x

Combine like terms: -6x + 6x = 0
7 + 6x = 138 + 0
7 + 6x = 138

Add '-7' to each side of the equation.
7 + -7 + 6x = 138 + -7

Combine like terms: 7 + -7 = 0
0 + 6x = 138 + -7
6x = 138 + -7

Combine like terms: 138 + -7 = 131
6x = 131

Divide each side by '6'.
x = 21.83333333

Simplifying
x = 21.83333333

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