Question

17. Obtenha a solução de cada equação.
a) 2x = 16
d) 7 = 19 - 2x
bly+5=9
e) 10 - 4y = y
c) 3z - 1= 14
f) 3 - Z=5z - 15​

Answer 1

a)2x=16

x=16/2

x=8

b)7=19-2x

2x=19-7

x=12/2

x=6

c)y+5=9

y=9-5

y=4

d)10-4y=y

10=y+4y

10=5y

10/5=y

2=y

e)3z-1=14

3z=14+1

3z=15

z=15/3

z=5

f)3-z=5z-15

3+15=5z+z

18=6z

18/6=z

3=z

Answer 2

Resposta:

a)2x =16

x=16/ 2

x=8

b)y=9-5

y=4

c)3z=14+1

3z=15

x=15/ 3

x=5

d)2x=19- 7

2x =12

x=12/2

x=6

e)4y +y=10

5y=10

y=10/ 5

y=2

f)-z-5z=-15-3

-6z=-18 (-1)

z=18/ 6

z =3

bom estudo