Question

a) X-26 = 42
b) X + 29 = 47
c) 7X = 98
d) X=9
4
e) 7x + 17 - 2x + 32
1) - 4x-13 - 2x + 23​

Answer 1

Resposta:

a) 68

b) 18

c) 14

d) ???

e) 3

f) -6

Explicação passo-a-passo:

a) x - 26 = 42

x = 42 + 26

x = 68

b) x + 29 = 47

x = 47 - 29

x = 18

c) 7x = 98

x = 98 ÷ 7

x = 14

d) ???

e) 7x + 17 - 2x + 32

7x - 2x = 32 - 17

5x = 32 - 17

5x = 15

x = 15 ÷ 5

x = 3

1) -4x - 13 - 2x + 23

-4x - 2x = 23 + 13

-6x = 23 + 13

-6x = 36

x = 36 ÷ -6

x = -6