7=115-3x

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Solution for 7=115-3x equation:


Simplifying
7 = 115 + -3x

Solving
7 = 115 + -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.
7 + 3x = 115 + -3x + 3x

Combine like terms: -3x + 3x = 0
7 + 3x = 115 + 0
7 + 3x = 115

Add '-7' to each side of the equation.
7 + -7 + 3x = 115 + -7

Combine like terms: 7 + -7 = 0
0 + 3x = 115 + -7
3x = 115 + -7

Combine like terms: 115 + -7 = 108
3x = 108

Divide each side by '3'.
x = 36

Simplifying
x = 36

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