Answer:
y=7
An explanation is below!
Step-by-step explanation:
Subtract 4 from both sides:
-3y+4-4=-17-4
Simplify:
-3y=-21
Divide both sides by -3
-3y/-3 = -21/-3
7
-3y+4= -17
-3y= -21
y= 7
Is that everything for the problem??
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-20...........................
9 5/12 I think I’m not hundred percent