45+x=66

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Solution for 45+x=66 equation: 


Simplifying
45 + x = 66

Solving
45 + x = 66

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + x = 66 + -45

Combine like terms: 45 + -45 = 0
0 + x = 66 + -45
x = 66 + -45

Combine like terms: 66 + -45 = 21
x = 21

Simplifying
x = 21

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