12+1=x(12-1)

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Solution for 12+1=x(12-1) equation:


Simplifying
12 + 1 = x(12 + -1)

Combine like terms: 12 + 1 = 13
13 = x(12 + -1)

Combine like terms: 12 + -1 = 11
13 = x(11)

Reorder the terms for easier multiplication:
13 = 11x

Solving
13 = 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
13 + -11x = 11x + -11x

Combine like terms: 11x + -11x = 0
13 + -11x = 0

Add '-13' to each side of the equation.
13 + -13 + -11x = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -11x = 0 + -13
-11x = 0 + -13

Combine like terms: 0 + -13 = -13
-11x = -13

Divide each side by '-11'.
x = 1.181818182

Simplifying
x = 1.181818182

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