Question

a) x - 3 =-5, sendo U= IN
b)x - 1 = , sendo U=Z
4
4
c) 2x + 4 = 20, sendo U=Q
d) 6x - 14 = 10, sendo U = IN
e) * + 8 = 10, sendo U = 7.​

Answer 1

a) x-3=-5

×=3-5

x=-2

B)eu nao vi o resultado

c)2x+4=20

2x=-4+20

2x/2x=-24/2

x=-12

D)6x-14=10

6x=14+10

6x/6x=24/6x

x=4