76-4x=7x+21

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Solution for 76-4x=7x+21 equation:


Simplifying
76 + -4x = 7x + 21

Reorder the terms:
76 + -4x = 21 + 7x

Solving
76 + -4x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
76 + -4x + -7x = 21 + 7x + -7x

Combine like terms: -4x + -7x = -11x
76 + -11x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
76 + -11x = 21 + 0
76 + -11x = 21

Add '-76' to each side of the equation.
76 + -76 + -11x = 21 + -76

Combine like terms: 76 + -76 = 0
0 + -11x = 21 + -76
-11x = 21 + -76

Combine like terms: 21 + -76 = -55
-11x = -55

Divide each side by '-11'.
x = 5

Simplifying
x = 5

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