-3(1+2y)=9

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Solution for -3(1+2y)=9 equation: 


Simplifying
-3(1 + 2y) = 9
(1 * -3 + 2y * -3) = 9
(-3 + -6y) = 9

Solving
-3 + -6y = 9

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + -6y = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -6y = 9 + 3
-6y = 9 + 3

Combine like terms: 9 + 3 = 12
-6y = 12

Divide each side by '-6'.
y = -2

Simplifying
y = -2

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