63-6x=8x+21

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Solution for 63-6x=8x+21 equation:


Simplifying
63 + -6x = 8x + 21

Reorder the terms:
63 + -6x = 21 + 8x

Solving
63 + -6x = 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.
63 + -6x + -8x = 21 + 8x + -8x

Combine like terms: -6x + -8x = -14x
63 + -14x = 21 + 8x + -8x

Combine like terms: 8x + -8x = 0
63 + -14x = 21 + 0
63 + -14x = 21

Add '-63' to each side of the equation.
63 + -63 + -14x = 21 + -63

Combine like terms: 63 + -63 = 0
0 + -14x = 21 + -63
-14x = 21 + -63

Combine like terms: 21 + -63 = -42
-14x = -42

Divide each side by '-14'.
x = 3

Simplifying
x = 3

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