Question

Alguem poderia me ajudar

Answer 1

a)

3x = 15
x = 15÷3
x= 4

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 = -3