Question

Sabendo que a//b//c, determine o valor de X e verificar as imagens abaixo

Answer 1

9/12=×/×+2
9x+18=12x
21x=18/21
X=0,85

8/24=6/x+4
8x+32=144
8x=144-32
8x=112
X=112/8
X=14