3y+77=-7

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Solution for 3y+77=-7 equation: 


Simplifying
3y + 77 = -7

Reorder the terms:
77 + 3y = -7

Solving
77 + 3y = -7

Solving for variable 'y'.

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

Add '-77' to each side of the equation.
77 + -77 + 3y = -7 + -77

Combine like terms: 77 + -77 = 0
0 + 3y = -7 + -77
3y = -7 + -77

Combine like terms: -7 + -77 = -84
3y = -84

Divide each side by '3'.
y = -28

Simplifying
y = -28

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