Question

7 - Resolva as seguintes equações:
a) 3x = 15
b) 2x = 14
c) 4x = -12
d) 7x = -21
e) 13x = 13
f) 9x = -9​

Answer 1

Resposta:

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