Question

a) 3x = 15

b) 2x = 14

c) 4x = -12

d) 7x = -21

e) 13x = 13

f) 9x -= -9​

Answer 1

→ Cálculo :

a) 3x = 15

x = 15 ÷ 3

x = 5

 

b) 2x = 14

x = 14 ÷ 2

x = 7

c) 4x = -12

x = -12 ÷ 4

x = -3

d) 7x = -21

x = -21 ÷ 7

x = -3

e) 13x = 13

x = 13 ÷ 13

x = 1

f) 9x = -9​

x = -9 ÷ 9

x = -1