10x-21=3(9+6x)

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Solution for 10x-21=3(9+6x) equation:


Simplifying
10x + -21 = 3(9 + 6x)

Reorder the terms:
-21 + 10x = 3(9 + 6x)
-21 + 10x = (9 * 3 + 6x * 3)
-21 + 10x = (27 + 18x)

Solving
-21 + 10x = 27 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
-21 + 10x + -18x = 27 + 18x + -18x

Combine like terms: 10x + -18x = -8x
-21 + -8x = 27 + 18x + -18x

Combine like terms: 18x + -18x = 0
-21 + -8x = 27 + 0
-21 + -8x = 27

Add '21' to each side of the equation.
-21 + 21 + -8x = 27 + 21

Combine like terms: -21 + 21 = 0
0 + -8x = 27 + 21
-8x = 27 + 21

Combine like terms: 27 + 21 = 48
-8x = 48

Divide each side by '-8'.
x = -6

Simplifying
x = -6

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