12=-3x+7y

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Solution for 12=-3x+7y equation:


Simplifying
12 = -3x + 7y

Solving
12 = -3x + 7y

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.
12 + 3x = -3x + 3x + 7y

Combine like terms: -3x + 3x = 0
12 + 3x = 0 + 7y
12 + 3x = 7y

Add '-12' to each side of the equation.
12 + -12 + 3x = -12 + 7y

Combine like terms: 12 + -12 = 0
0 + 3x = -12 + 7y
3x = -12 + 7y

Divide each side by '3'.
x = -4 + 2.333333333y

Simplifying
x = -4 + 2.333333333y

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