-3(x+4)-21=72

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Solution for -3(x+4)-21=72 equation:


Simplifying
-3(x + 4) + -21 = 72

Reorder the terms:
-3(4 + x) + -21 = 72
(4 * -3 + x * -3) + -21 = 72
(-12 + -3x) + -21 = 72

Reorder the terms:
-12 + -21 + -3x = 72

Combine like terms: -12 + -21 = -33
-33 + -3x = 72

Solving
-33 + -3x = 72

Solving for variable 'x'.

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

Add '33' to each side of the equation.
-33 + 33 + -3x = 72 + 33

Combine like terms: -33 + 33 = 0
0 + -3x = 72 + 33
-3x = 72 + 33

Combine like terms: 72 + 33 = 105
-3x = 105

Divide each side by '-3'.
x = -35

Simplifying
x = -35

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