4x-7=77

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Solution for 4x-7=77 equation: 


Simplifying
4x + -7 = 77

Reorder the terms:
-7 + 4x = 77

Solving
-7 + 4x = 77

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 4x = 77 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 77 + 7
4x = 77 + 7

Combine like terms: 77 + 7 = 84
4x = 84

Divide each side by '4'.
x = 21

Simplifying
x = 21

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