3(x+8)+6x=-21

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Solution for 3(x+8)+6x=-21 equation:


Simplifying
3(x + 8) + 6x = -21

Reorder the terms:
3(8 + x) + 6x = -21
(8 * 3 + x * 3) + 6x = -21
(24 + 3x) + 6x = -21

Combine like terms: 3x + 6x = 9x
24 + 9x = -21

Solving
24 + 9x = -21

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + 9x = -21 + -24

Combine like terms: 24 + -24 = 0
0 + 9x = -21 + -24
9x = -21 + -24

Combine like terms: -21 + -24 = -45
9x = -45

Divide each side by '9'.
x = -5

Simplifying
x = -5

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