Question

continue calculando, mentalmente,o valor de x.

a) x/4 =1

b)x/3 =1,5

c)x-5/7 =1

d)15+x/8 =2

Answer 1

a= x= 4*1 x = 4

b= x= 1.5 * 3   x= 4.5

c= x = 1 + 5/7
     x= 7+5/7
     x= 12/7

d= 15+x/8=2
     x/8= -13
     x = -13 * 8
     x=  -104

Espero ter ajudado ;)