3(x-2)+21=0

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Solution for 3(x-2)+21=0 equation:


Simplifying
3(x + -2) + 21 = 0

Reorder the terms:
3(-2 + x) + 21 = 0
(-2 * 3 + x * 3) + 21 = 0
(-6 + 3x) + 21 = 0

Reorder the terms:
-6 + 21 + 3x = 0

Combine like terms: -6 + 21 = 15
15 + 3x = 0

Solving
15 + 3x = 0

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 3x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 0 + -15
3x = 0 + -15

Combine like terms: 0 + -15 = -15
3x = -15

Divide each side by '3'.
x = -5

Simplifying
x = -5

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