y+3x=-7

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Solution for y+3x=-7 equation: 


Simplifying
y + 3x = -7

Reorder the terms:
3x + y = -7

Solving
3x + y = -7

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.
3x + y + -1y = -7 + -1y

Combine like terms: y + -1y = 0
3x + 0 = -7 + -1y
3x = -7 + -1y

Divide each side by '3'.
x = -2.333333333 + -0.3333333333y

Simplifying
x = -2.333333333 + -0.3333333333y

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