-1-3y=9

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Solution for -1-3y=9 equation: 


Simplifying
-1 + -3y = 9

Solving
-1 + -3y = 9

Solving for variable 'y'.

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

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

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

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

Divide each side by '-3'.
y = -3.333333333

Simplifying
y = -3.333333333

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