7x-2=-2x-21

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Solution for 7x-2=-2x-21 equation:


Simplifying
7x + -2 = -2x + -21

Reorder the terms:
-2 + 7x = -2x + -21

Reorder the terms:
-2 + 7x = -21 + -2x

Solving
-2 + 7x = -21 + -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.
-2 + 7x + 2x = -21 + -2x + 2x

Combine like terms: 7x + 2x = 9x
-2 + 9x = -21 + -2x + 2x

Combine like terms: -2x + 2x = 0
-2 + 9x = -21 + 0
-2 + 9x = -21

Add '2' to each side of the equation.
-2 + 2 + 9x = -21 + 2

Combine like terms: -2 + 2 = 0
0 + 9x = -21 + 2
9x = -21 + 2

Combine like terms: -21 + 2 = -19
9x = -19

Divide each side by '9'.
x = -2.111111111

Simplifying
x = -2.111111111

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