7(x-7)=77

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


Simplifying
7(x + -7) = 77

Reorder the terms:
7(-7 + x) = 77
(-7 * 7 + x * 7) = 77
(-49 + 7x) = 77

Solving
-49 + 7x = 77

Solving for variable 'x'.

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

Add '49' to each side of the equation.
-49 + 49 + 7x = 77 + 49

Combine like terms: -49 + 49 = 0
0 + 7x = 77 + 49
7x = 77 + 49

Combine like terms: 77 + 49 = 126
7x = 126

Divide each side by '7'.
x = 18

Simplifying
x = 18

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