7-y+5y=9

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Solution for 7-y+5y=9 equation: 


Simplifying
7 + -1y + 5y = 9

Combine like terms: -1y + 5y = 4y
7 + 4y = 9

Solving
7 + 4y = 9

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + 4y = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 4y = 9 + -7
4y = 9 + -7

Combine like terms: 9 + -7 = 2
4y = 2

Divide each side by '4'.
y = 0.5

Simplifying
y = 0.5

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