12x-21y=-42

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Solution for 12x-21y=-42 equation: 


Simplifying
12x + -21y = -42

Solving
12x + -21y = -42

Solving for variable 'x'.

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

Add '21y' to each side of the equation.
12x + -21y + 21y = -42 + 21y

Combine like terms: -21y + 21y = 0
12x + 0 = -42 + 21y
12x = -42 + 21y

Divide each side by '12'.
x = -3.5 + 1.75y

Simplifying
x = -3.5 + 1.75y

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