45+18+x=20

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Solution for 45+18+x=20 equation: 


Simplifying
45 + 18 + x = 20

Combine like terms: 45 + 18 = 63
63 + x = 20

Solving
63 + x = 20

Solving for variable 'x'.

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

Add '-63' to each side of the equation.
63 + -63 + x = 20 + -63

Combine like terms: 63 + -63 = 0
0 + x = 20 + -63
x = 20 + -63

Combine like terms: 20 + -63 = -43
x = -43

Simplifying
x = -43

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