21=6(x-3)

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


Simplifying
21 = 6(x + -3)

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

Solving
21 = -18 + 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.
21 + -6x = -18 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 + -6x = -18 + 0
21 + -6x = -18

Add '-21' to each side of the equation.
21 + -21 + -6x = -18 + -21

Combine like terms: 21 + -21 = 0
0 + -6x = -18 + -21
-6x = -18 + -21

Combine like terms: -18 + -21 = -39
-6x = -39

Divide each side by '-6'.
x = 6.5

Simplifying
x = 6.5

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