12x+y=45

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Solution for 12x+y=45 equation: 


Simplifying
12x + y = 45

Solving
12x + y = 45

Solving for variable 'x'.

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

Add '-1y' to each side of the equation.
12x + y + -1y = 45 + -1y

Combine like terms: y + -1y = 0
12x + 0 = 45 + -1y
12x = 45 + -1y

Divide each side by '12'.
x = 3.75 + -0.08333333333y

Simplifying
x = 3.75 + -0.08333333333y

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