3y+5y+x=7y

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Solution for 3y+5y+x=7y equation: 


Simplifying
3y + 5y + x = 7y

Reorder the terms:
x + 3y + 5y = 7y

Combine like terms: 3y + 5y = 8y
x + 8y = 7y

Solving
x + 8y = 7y

Solving for variable 'x'.

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

Add '-8y' to each side of the equation.
x + 8y + -8y = 7y + -8y

Combine like terms: 8y + -8y = 0
x + 0 = 7y + -8y
x = 7y + -8y

Combine like terms: 7y + -8y = -1y
x = -1y

Simplifying
x = -1y

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