9(x+4)-21=

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Solution for 9(x+4)-21= equation:


Simplifying
9(x + 4) + -21 = 0

Reorder the terms:
9(4 + x) + -21 = 0
(4 * 9 + x * 9) + -21 = 0
(36 + 9x) + -21 = 0

Reorder the terms:
36 + -21 + 9x = 0

Combine like terms: 36 + -21 = 15
15 + 9x = 0

Solving
15 + 9x = 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 + 9x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 9x = 0 + -15
9x = 0 + -15

Combine like terms: 0 + -15 = -15
9x = -15

Divide each side by '9'.
x = -1.666666667

Simplifying
x = -1.666666667

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