13=1-7x

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Solution for 13=1-7x equation:


Simplifying
13 = 1 + -7x

Solving
13 = 1 + -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.
13 + 7x = 1 + -7x + 7x

Combine like terms: -7x + 7x = 0
13 + 7x = 1 + 0
13 + 7x = 1

Add '-13' to each side of the equation.
13 + -13 + 7x = 1 + -13

Combine like terms: 13 + -13 = 0
0 + 7x = 1 + -13
7x = 1 + -13

Combine like terms: 1 + -13 = -12
7x = -12

Divide each side by '7'.
x = -1.714285714

Simplifying
x = -1.714285714

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