Answer:
Step-by-step explanation: I don't understand what 4x 10 is so I cannot solve a for you.
b) 6.5+x=19 x=19-6.5=12.5
c)8x-12=96 8x=108 x=13.5
d) Sorry but I don't know what 2x 5 = 5 is so I can't help you with this one.
e) 2(x+4)=37 x+4=18.5 x=14.5
So based on what I can interpret from the question, b is correct