8x+21=10x-1

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Solution for 8x+21=10x-1 equation:


Simplifying
8x + 21 = 10x + -1

Reorder the terms:
21 + 8x = 10x + -1

Reorder the terms:
21 + 8x = -1 + 10x

Solving
21 + 8x = -1 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
21 + 8x + -10x = -1 + 10x + -10x

Combine like terms: 8x + -10x = -2x
21 + -2x = -1 + 10x + -10x

Combine like terms: 10x + -10x = 0
21 + -2x = -1 + 0
21 + -2x = -1

Add '-21' to each side of the equation.
21 + -21 + -2x = -1 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = -1 + -21
-2x = -1 + -21

Combine like terms: -1 + -21 = -22
-2x = -22

Divide each side by '-2'.
x = 11

Simplifying
x = 11

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