81-5x=10+21

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Solution for 81-5x=10+21 equation: 


Simplifying
81 + -5x = 10 + 21

Combine like terms: 10 + 21 = 31
81 + -5x = 31

Solving
81 + -5x = 31

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + -5x = 31 + -81

Combine like terms: 81 + -81 = 0
0 + -5x = 31 + -81
-5x = 31 + -81

Combine like terms: 31 + -81 = -50
-5x = -50

Divide each side by '-5'.
x = 10

Simplifying
x = 10

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