21+3x=60

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Solution for 21+3x=60 equation: 


Simplifying
21 + 3x = 60

Solving
21 + 3x = 60

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 3x = 60 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 60 + -21
3x = 60 + -21

Combine like terms: 60 + -21 = 39
3x = 39

Divide each side by '3'.
x = 13

Simplifying
x = 13

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