-3y=2(-1)-7

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Solution for -3y=2(-1)-7 equation: 


Simplifying
-3y = 2(-1) + -7

Multiply 2 * -1
-3y = -2 + -7

Combine like terms: -2 + -7 = -9
-3y = -9

Solving
-3y = -9

Solving for variable 'y'.

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

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

Simplifying
y = 3

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