3y+x-7=0

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Solution for 3y+x-7=0 equation:


Simplifying
3y + x + -7 = 0

Reorder the terms:
-7 + x + 3y = 0

Solving
-7 + x + 3y = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + x + 7 + 3y = 0 + 7

Reorder the terms:
-7 + 7 + x + 3y = 0 + 7

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

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

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

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

Simplifying
x = 7 + -3y

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