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 = -462
42x = -462

Divide each side by '42'.
x = -11

Simplifying
x = -11

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