Question

Resolva:4z+3=47
3y-2=13
y-15=-15
8-5y=24+y

Answer 1

4z+3=47

4z=47-3

4z=44

z=44/4

z=11

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3y-2=13

3y=13+2

3y=15

y=15/3

y=5

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y-15=-15

y=-15+15

y=0

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8-5y=24+y

-5y-y=24-8

-6y=16

y=16/-6

y=-16/6

y=-8/3

Answer 2

4z+3=47
4z=47-3
4z=44
z=44/4
z=11

3y-2=13
3y=13+2
3y=15
y=15/3
y=5

y-15=-15
y=-15+15
y=0

8-5y=24+y
-5y-y=24-8
-6y=16
y=+16/-6
y=-8/3