-7(4x-9)=399

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Solution for -7(4x-9)=399 equation:


Simplifying
-7(4x + -9) = 399

Reorder the terms:
-7(-9 + 4x) = 399
(-9 * -7 + 4x * -7) = 399
(63 + -28x) = 399

Solving
63 + -28x = 399

Solving for variable 'x'.

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

Add '-63' to each side of the equation.
63 + -63 + -28x = 399 + -63

Combine like terms: 63 + -63 = 0
0 + -28x = 399 + -63
-28x = 399 + -63

Combine like terms: 399 + -63 = 336
-28x = 336

Divide each side by '-28'.
x = -12

Simplifying
x = -12

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