Question

1. RESOLVA AS EQUAÇÕES A SEGUIR :



a) 3 X = 15

b) 2 X = 14

c) 4 X = - 12

d) 7 X = - 21

e) X + 5 = 8

f) X – 4 = 3

g) X + 28 = 21

h) X + 2 = 7

i) X + 5 = 12

j) Y + 5 = 9

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Answer 1

Explicação passo-a-passo:

a) x=15:3

x= 5

b) x= 14:2

x=7

c) x= -12:4

x= -3

d) x= -21:7

x= -3

e) x= 8-5

x=3:1

x=3

f)x= 3+4

x=7:1

x= 7

g) x=21-28

x= -7:1

x= -7

h) x=7-2

x=5:1

x=5

i)x= 12-5

x=7:1

x=7

j) y=9-5

y=4:1

y=4