45=20+5x

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Solution for 45=20+5x equation:


Simplifying
45 = 20 + 5x

Solving
45 = 20 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
45 + -5x = 20 + 5x + -5x

Combine like terms: 5x + -5x = 0
45 + -5x = 20 + 0
45 + -5x = 20

Add '-45' to each side of the equation.
45 + -45 + -5x = 20 + -45

Combine like terms: 45 + -45 = 0
0 + -5x = 20 + -45
-5x = 20 + -45

Combine like terms: 20 + -45 = -25
-5x = -25

Divide each side by '-5'.
x = 5

Simplifying
x = 5

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