10x+8=8x+21

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


Simplifying
10x + 8 = 8x + 21

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

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

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

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

Combine like terms: 8x + -8x = 0
8 + 2x = 21 + 0
8 + 2x = 21

Add '-8' to each side of the equation.
8 + -8 + 2x = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 2x = 21 + -8
2x = 21 + -8

Combine like terms: 21 + -8 = 13
2x = 13

Divide each side by '2'.
x = 6.5

Simplifying
x = 6.5

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