Question

4x-3=9
7x+6=-15
5x+7=17
3x+14=-1​

Answer 1

Resposta:

a) x=3

b) x=-3

c) x=2

d) x=-5

Explicação passo-a-passo:

4x-3=9

4x=9+3

4x=12

x=12:4

x=3

7x+6=-15

7x=-15-6

7x=-21

x=-21:7

x=-3

5x+7=17

5x=17-7

5x=10

x=10:5

x=2

3x+14=-1​

3x=-1-14

3x=-15

x=-15:3

x=-5