Question

Resolva as equações:

a) x/2=8

b) x/2=-8

c) 3x/4=9

d) 2x/3=-10

Answer 1

a) x= 16

b) x = -16

c) 3x = 36 >> x = 36/3 >>  x = 12

d) 2x = -30 >> x = -30/2 >> x = -15

Answer 2

a) x=8*2          
     x=16

b) x= (-8)*2
     x= -16

c) 3x/4 =9
    3x=9*4
     x=36/3
     x=12

d) 2x/3 = -10
     2x= -10 *3
     2x = -30
       x = -30/2
       x= -15