7(9-6x)=399

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Solution for 7(9-6x)=399 equation: 


Simplifying
7(9 + -6x) = 399
(9 * 7 + -6x * 7) = 399
(63 + -42x) = 399

Solving
63 + -42x = 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 + -42x = 399 + -63

Combine like terms: 63 + -63 = 0
0 + -42x = 399 + -63
-42x = 399 + -63

Combine like terms: 399 + -63 = 336
-42x = 336

Divide each side by '-42'.
x = -8

Simplifying
x = -8

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