What does y=?? 10 POINTS
y = [ ? ]
5y-20
2y+25

1st one)

y = 4

2nd one)

y = -12.5

Step-by-step explanation:

5y - 20 = 0

add 20 on both sides:

⇒ 5y - 20 + 20 = 0 + 20

⇒ 5y = 20

divide 5 on both sides

⇒

⇒ y = 4

2y + 25 = 0

subtract 25 on both sides

⇒ 2y + 25 - 25 = 0 - 25

⇒ 2y = -25

divide 2 on both sides:

⇒

⇒ y = -12.5

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step-by-step explanation:

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step-by-step explanation: