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

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


Simplifying
21 + x = 6(-3 + -2x)
21 + x = (-3 * 6 + -2x * 6)
21 + x = (-18 + -12x)

Solving
21 + x = -18 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
21 + x + 12x = -18 + -12x + 12x

Combine like terms: x + 12x = 13x
21 + 13x = -18 + -12x + 12x

Combine like terms: -12x + 12x = 0
21 + 13x = -18 + 0
21 + 13x = -18

Add '-21' to each side of the equation.
21 + -21 + 13x = -18 + -21

Combine like terms: 21 + -21 = 0
0 + 13x = -18 + -21
13x = -18 + -21

Combine like terms: -18 + -21 = -39
13x = -39

Divide each side by '13'.
x = -3

Simplifying
x = -3

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