21+7x-2x-6=-8+3x-3

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Solution for 21+7x-2x-6=-8+3x-3 equation:


Simplifying
21 + 7x + -2x + -6 = -8 + 3x + -3

Reorder the terms:
21 + -6 + 7x + -2x = -8 + 3x + -3

Combine like terms: 21 + -6 = 15
15 + 7x + -2x = -8 + 3x + -3

Combine like terms: 7x + -2x = 5x
15 + 5x = -8 + 3x + -3

Reorder the terms:
15 + 5x = -8 + -3 + 3x

Combine like terms: -8 + -3 = -11
15 + 5x = -11 + 3x

Solving
15 + 5x = -11 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
15 + 5x + -3x = -11 + 3x + -3x

Combine like terms: 5x + -3x = 2x
15 + 2x = -11 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + 2x = -11 + 0
15 + 2x = -11

Add '-15' to each side of the equation.
15 + -15 + 2x = -11 + -15

Combine like terms: 15 + -15 = 0
0 + 2x = -11 + -15
2x = -11 + -15

Combine like terms: -11 + -15 = -26
2x = -26

Divide each side by '2'.
x = -13

Simplifying
x = -13

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