21x+64=x+81+3

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Solution for 21x+64=x+81+3 equation:


Simplifying
21x + 64 = x + 81 + 3

Reorder the terms:
64 + 21x = x + 81 + 3

Reorder the terms:
64 + 21x = 81 + 3 + x

Combine like terms: 81 + 3 = 84
64 + 21x = 84 + x

Solving
64 + 21x = 84 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
64 + 21x + -1x = 84 + x + -1x

Combine like terms: 21x + -1x = 20x
64 + 20x = 84 + x + -1x

Combine like terms: x + -1x = 0
64 + 20x = 84 + 0
64 + 20x = 84

Add '-64' to each side of the equation.
64 + -64 + 20x = 84 + -64

Combine like terms: 64 + -64 = 0
0 + 20x = 84 + -64
20x = 84 + -64

Combine like terms: 84 + -64 = 20
20x = 20

Divide each side by '20'.
x = 1

Simplifying
x = 1

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