Question

Me ajudem prfvr,vale 18 pontos ​

Answer 1

Explicação passo-a-passo:

1

a) x/2=8

8.2=x

x=16

b) x/2=-8

-8.2=x

x=-16

c) 3x/4=9

4x9=3x

4x9=36

36/4=9

d)2x/3=-10

-10x3=-30

-30/2=-15

2

a) x+4/6=1

4+x=6

x=2

b) x-5/7=1

x-5=7

x=-2

Answer 2

Explicação passo-a-passo:

a)

x/2=8

x=8.2

x=16

b)

x/2=-8

x=-8.2

x=-16

c)

3x/4=9

3x=9.4

x=36/3

x=12

d)

2x/3=-10

2x=-10.3

x=-30/2

x=-15

a) (x+4)/6=1

x=2

b)(x-5)/7=1

x=12