7y-9+y=-(y+9y)

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Solution for 7y-9+y=-(y+9y) equation:


Simplifying
7y + -9 + y = -1(y + 9y)

Reorder the terms:
-9 + 7y + y = -1(y + 9y)

Combine like terms: 7y + y = 8y
-9 + 8y = -1(y + 9y)

Combine like terms: y + 9y = 10y
-9 + 8y = -1(10y)

Remove parenthesis around (10y)
-9 + 8y = -1 * 10y

Multiply -1 * 10
-9 + 8y = -10y

Solving
-9 + 8y = -10y

Solving for variable 'y'.

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

Add '10y' to each side of the equation.
-9 + 8y + 10y = -10y + 10y

Combine like terms: 8y + 10y = 18y
-9 + 18y = -10y + 10y

Combine like terms: -10y + 10y = 0
-9 + 18y = 0

Add '9' to each side of the equation.
-9 + 9 + 18y = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 18y = 0 + 9
18y = 0 + 9

Combine like terms: 0 + 9 = 9
18y = 9

Divide each side by '18'.
y = 0.5

Simplifying
y = 0.5

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