Question

Qual é o valor de X:
a) X/12=5/3
b) X/25=3/5
c) 36/10=X/15
d) X/25=3/5
e) 8/32=5/X
f) 18/X=6/10

Answer 1

x=2*4-2*x 
2*x+x=2*4 
3x=8 
x=8/3