21x-77=0

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Solution for 21x-77=0 equation: 


Simplifying
21x + -77 = 0

Reorder the terms:
-77 + 21x = 0

Solving
-77 + 21x = 0

Solving for variable 'x'.

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

Add '77' to each side of the equation.
-77 + 77 + 21x = 0 + 77

Combine like terms: -77 + 77 = 0
0 + 21x = 0 + 77
21x = 0 + 77

Combine like terms: 0 + 77 = 77
21x = 77

Divide each side by '21'.
x = 3.666666667

Simplifying
x = 3.666666667

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