21=6(x+2)-3

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Solution for 21=6(x+2)-3 equation:


Simplifying
21 = 6(x + 2) + -3

Reorder the terms:
21 = 6(2 + x) + -3
21 = (2 * 6 + x * 6) + -3
21 = (12 + 6x) + -3

Reorder the terms:
21 = 12 + -3 + 6x

Combine like terms: 12 + -3 = 9
21 = 9 + 6x

Solving
21 = 9 + 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 = 9 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 + -6x = 9 + 0
21 + -6x = 9

Add '-21' to each side of the equation.
21 + -21 + -6x = 9 + -21

Combine like terms: 21 + -21 = 0
0 + -6x = 9 + -21
-6x = 9 + -21

Combine like terms: 9 + -21 = -12
-6x = -12

Divide each side by '-6'.
x = 2

Simplifying
x = 2

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