7y-9=-1-3y

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Solution for 7y-9=-1-3y equation:


Simplifying
7y + -9 = -1 + -3y

Reorder the terms:
-9 + 7y = -1 + -3y

Solving
-9 + 7y = -1 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
-9 + 7y + 3y = -1 + -3y + 3y

Combine like terms: 7y + 3y = 10y
-9 + 10y = -1 + -3y + 3y

Combine like terms: -3y + 3y = 0
-9 + 10y = -1 + 0
-9 + 10y = -1

Add '9' to each side of the equation.
-9 + 9 + 10y = -1 + 9

Combine like terms: -9 + 9 = 0
0 + 10y = -1 + 9
10y = -1 + 9

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

Divide each side by '10'.
y = 0.8

Simplifying
y = 0.8

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