7(x-9)=77

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


Simplifying
7(x + -9) = 77

Reorder the terms:
7(-9 + x) = 77
(-9 * 7 + x * 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 = 140
7x = 140

Divide each side by '7'.
x = 20

Simplifying
x = 20

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