Answer:
1.5
Step-by-step explanation:
6/4=1.5
9/6=1.5
-4x - 2.4
explanation: 1.3 - 3.7 = -2.4
then you leave the -4x by itself since it’s the only variable
you don't have enough info, we need to know how old he was when he was twice her age, or how old she was
