Question

Hallar el valor de x
12(14)5
15(20)5
18( x )7

Answer 1

12-5=7(2)=14
15-5=10(2)=20
18-7=11(2)=22

Answer 2

12-5=7  >>>7*2=14
15-5=10   >>> 10*2 =20
18-7= 11 >>>> 11*2 =22

rpta 22