-7(3x-4)-4x=78

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Solution for -7(3x-4)-4x=78 equation:


Simplifying
-7(3x + -4) + -4x = 78

Reorder the terms:
-7(-4 + 3x) + -4x = 78
(-4 * -7 + 3x * -7) + -4x = 78
(28 + -21x) + -4x = 78

Combine like terms: -21x + -4x = -25x
28 + -25x = 78

Solving
28 + -25x = 78

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + -25x = 78 + -28

Combine like terms: 28 + -28 = 0
0 + -25x = 78 + -28
-25x = 78 + -28

Combine like terms: 78 + -28 = 50
-25x = 50

Divide each side by '-25'.
x = -2

Simplifying
x = -2

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