-1=7-x

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Solution for -1=7-x equation:


Simplifying
-1 = 7 + -1x

Solving
-1 = 7 + -1x

Solving for variable 'x'.

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

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

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

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

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

Combine like terms: 7 + 1 = 8
x = 8

Simplifying
x = 8

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