-3x-21=8x-10

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Solution for -3x-21=8x-10 equation:


Simplifying
-3x + -21 = 8x + -10

Reorder the terms:
-21 + -3x = 8x + -10

Reorder the terms:
-21 + -3x = -10 + 8x

Solving
-21 + -3x = -10 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-21 + -3x + -8x = -10 + 8x + -8x

Combine like terms: -3x + -8x = -11x
-21 + -11x = -10 + 8x + -8x

Combine like terms: 8x + -8x = 0
-21 + -11x = -10 + 0
-21 + -11x = -10

Add '21' to each side of the equation.
-21 + 21 + -11x = -10 + 21

Combine like terms: -21 + 21 = 0
0 + -11x = -10 + 21
-11x = -10 + 21

Combine like terms: -10 + 21 = 11
-11x = 11

Divide each side by '-11'.
x = -1

Simplifying
x = -1

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