7+3y=-21

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Solution for 7+3y=-21 equation: 


Simplifying
7 + 3y = -21

Solving
7 + 3y = -21

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + 3y = -21 + -7

Combine like terms: 7 + -7 = 0
0 + 3y = -21 + -7
3y = -21 + -7

Combine like terms: -21 + -7 = -28
3y = -28

Divide each side by '3'.
y = -9.333333333

Simplifying
y = -9.333333333

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