225=20x+45

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Solution for 225=20x+45 equation:


Simplifying
225 = 20x + 45

Reorder the terms:
225 = 45 + 20x

Solving
225 = 45 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
225 + -20x = 45 + 20x + -20x

Combine like terms: 20x + -20x = 0
225 + -20x = 45 + 0
225 + -20x = 45

Add '-225' to each side of the equation.
225 + -225 + -20x = 45 + -225

Combine like terms: 225 + -225 = 0
0 + -20x = 45 + -225
-20x = 45 + -225

Combine like terms: 45 + -225 = -180
-20x = -180

Divide each side by '-20'.
x = 9

Simplifying
x = 9

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