3x-7(x+8)=72

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Solution for 3x-7(x+8)=72 equation:


Simplifying
3x + -7(x + 8) = 72

Reorder the terms:
3x + -7(8 + x) = 72
3x + (8 * -7 + x * -7) = 72
3x + (-56 + -7x) = 72

Reorder the terms:
-56 + 3x + -7x = 72

Combine like terms: 3x + -7x = -4x
-56 + -4x = 72

Solving
-56 + -4x = 72

Solving for variable 'x'.

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

Add '56' to each side of the equation.
-56 + 56 + -4x = 72 + 56

Combine like terms: -56 + 56 = 0
0 + -4x = 72 + 56
-4x = 72 + 56

Combine like terms: 72 + 56 = 128
-4x = 128

Divide each side by '-4'.
x = -32

Simplifying
x = -32

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