45-2x=16+21

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Solution for 45-2x=16+21 equation: 


Simplifying
45 + -2x = 16 + 21

Combine like terms: 16 + 21 = 37
45 + -2x = 37

Solving
45 + -2x = 37

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 + -2x = 37 + -45

Combine like terms: 45 + -45 = 0
0 + -2x = 37 + -45
-2x = 37 + -45

Combine like terms: 37 + -45 = -8
-2x = -8

Divide each side by '-2'.
x = 4

Simplifying
x = 4

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