Respuesta:
Explicación paso a paso:
1. 5y+12=57
5y=57-12
5y=45
y=45/5
y=9
2. 2y/3+9=17
2y/3=17-9
2y/3=8
2y=8*3
y=24/2
y=12
3. 2y+7=25
2y=32
Y=16
4. y/3+15=19
y/3=19-15
y=4*3
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Respuesta:
Explicación paso a paso:
1. 5y+12=57
5y=57-12
5y=45
y=45/5
y=9
2. 2y/3+9=17
2y/3=17-9
2y/3=8
2y=8*3
y=24/2
y=12
3. 2y+7=25
2y=32
Y=16
4. y/3+15=19
y/3=19-15
y=4*3
y=12