Respuesta:
1. 3y+1=25
3y=25-1
3y=24
y=24/3
y=8
2. 3u+8=32
3u=32-8
3u=24
u=24/3
u=8
3. 2u+7=13
2u=13-7
2u=6
u=6/2
u=3
6. 2z+2=16
2z=16-2
2z=14
z=14/2
z=7
7. 3c+3=15
3c=15-3
3c=12
c=12/3
c=4
8. 3c+6=12
3c=12-6
3c=6
c=6/3
c=2
9. 3x+9=15
3x=15-9
3x=6
x=6/3
x=2
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Verified answer
Respuesta:
1. 3y+1=25
3y=25-1
3y=24
y=24/3
y=8
2. 3u+8=32
3u=32-8
3u=24
u=24/3
u=8
3. 2u+7=13
2u=13-7
2u=6
u=6/2
u=3
6. 2z+2=16
2z=16-2
2z=14
z=14/2
z=7
7. 3c+3=15
3c=15-3
3c=12
c=12/3
c=4
8. 3c+6=12
3c=12-6
3c=6
c=6/3
c=2
9. 3x+9=15
3x=15-9
3x=6
x=6/3
x=2