Question

Resolva as seguintes equações: a)4×+6=22 b)2×-5=1 c)2×-14=4 d)5×+7=32 e)4×-10=-2 f)4×-7=-28 g)2×+1=-7 h)9×-21=15 i)6×-1=11 j)3×-13=-28 ME AJUDEM POR FAVOR ​

Answer 1

Resposta:

a) 4x+6=22

4x=22-6

4x=16

x=16/4

×=4

b) 2x-5=1

2x=1+5

2x=6

x=6/2

x=3

c)2×-14=4

2×=4+14

2×=18

×=18/2

×=9

d) 5×+7=32

5×=32-7

5×=25

×=25/5

×=5

e) 4×-10=-2

4×=-2+10

4×=8

×=8/4

×=2

f) 4×-7=-28

4×=-28+7

4×=-21

×=-21/4

×= 5,25

g) 2×+1=-7

2×=-7-1

2×=-8

×=-8/2

×=4

h) 9×-21=15

9×=15+21

9×=36

×=36/9

×=4

i) 6×-1=11

6×=11+1

6×=12

×=12/6

×=2

j)3×-13=-28

3×=-28+13

3×=15

×=15/3

×=5