-3(-7)+6y=-21

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Solution for -3(-7)+6y=-21 equation: 


Simplifying
-3(-7) + 6y = -21

Multiply -3 * -7
21 + 6y = -21

Solving
21 + 6y = -21

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + 6y = -21 + -21

Combine like terms: 21 + -21 = 0
0 + 6y = -21 + -21
6y = -21 + -21

Combine like terms: -21 + -21 = -42
6y = -42

Divide each side by '6'.
y = -7

Simplifying
y = -7

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