Respuesta :

weeb8848

Answer:

y=20

Step-by-step explanation:

25+15=40

2y=40

40/2=20

y=20

GilliamKathren

Answer:

y = 20

Step-by-step explanation:

25=2y - 15

2y - 15 = 25

2y - 15 + 15 = 25 + 15

2y = 40

2y ÷ 2 = 40 ÷ 2

y = 20

__________________________

2y - 15 = 25

2(20) - 15 = 25

40 - 15 = 25

25 = 25

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