7(9-x)=77

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Solution for 7(9-x)=77 equation: 


Simplifying
7(9 + -1x) = 77
(9 * 7 + -1x * 7) = 77
(63 + -7x) = 77

Solving
63 + -7x = 77

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 + -7x = 77 + -63

Combine like terms: 63 + -63 = 0
0 + -7x = 77 + -63
-7x = 77 + -63

Combine like terms: 77 + -63 = 14
-7x = 14

Divide each side by '-7'.
x = -2

Simplifying
x = -2

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