45-x=3x

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Solution for 45-x=3x equation:


Simplifying
45 + -1x = 3x

Solving
45 + -1x = 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
45 + -1x + -3x = 3x + -3x

Combine like terms: -1x + -3x = -4x
45 + -4x = 3x + -3x

Combine like terms: 3x + -3x = 0
45 + -4x = 0

Add '-45' to each side of the equation.
45 + -45 + -4x = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -4x = 0 + -45
-4x = 0 + -45

Combine like terms: 0 + -45 = -45
-4x = -45

Divide each side by '-4'.
x = 11.25

Simplifying
x = 11.25

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