8x+3=6x+21

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Solution for 8x+3=6x+21 equation:


Simplifying
8x + 3 = 6x + 21

Reorder the terms:
3 + 8x = 6x + 21

Reorder the terms:
3 + 8x = 21 + 6x

Solving
3 + 8x = 21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
3 + 8x + -6x = 21 + 6x + -6x

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

Combine like terms: 6x + -6x = 0
3 + 2x = 21 + 0
3 + 2x = 21

Add '-3' to each side of the equation.
3 + -3 + 2x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 21 + -3
2x = 21 + -3

Combine like terms: 21 + -3 = 18
2x = 18

Divide each side by '2'.
x = 9

Simplifying
x = 9

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