Question

a : 3 x = 15
b : 2 x = 14
C : 4 x = - 12
d : 7 x = - 21
e : 13 x = 13
f : 9 x = - 9
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Answer 1

Explicação passo-a-passo:

3x = 15

x= 15/3

x= 5

2x = 14

x=14/2

x= 7

4x = -12

x= -12/4

x= -3

7x = -21

x= -21/7

x= -3

13x = 13

x= 13/13

x=1

9x = -9

x= -9/9

x= -1