5x+21=10x-19

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Solution for 5x+21=10x-19 equation:


Simplifying
5x + 21 = 10x + -19

Reorder the terms:
21 + 5x = 10x + -19

Reorder the terms:
21 + 5x = -19 + 10x

Solving
21 + 5x = -19 + 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 + 5x + -10x = -19 + 10x + -10x

Combine like terms: 5x + -10x = -5x
21 + -5x = -19 + 10x + -10x

Combine like terms: 10x + -10x = 0
21 + -5x = -19 + 0
21 + -5x = -19

Add '-21' to each side of the equation.
21 + -21 + -5x = -19 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = -19 + -21
-5x = -19 + -21

Combine like terms: -19 + -21 = -40
-5x = -40

Divide each side by '-5'.
x = 8

Simplifying
x = 8

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