-1=7+2x

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Solution for -1=7+2x equation:


Simplifying
-1 = 7 + 2x

Solving
-1 = 7 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-1 + -2x = 7 + 2x + -2x

Combine like terms: 2x + -2x = 0
-1 + -2x = 7 + 0
-1 + -2x = 7

Add '1' to each side of the equation.
-1 + 1 + -2x = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -2x = 7 + 1
-2x = 7 + 1

Combine like terms: 7 + 1 = 8
-2x = 8

Divide each side by '-2'.
x = -4

Simplifying
x = -4

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