Answer:
B because you multiply all the similar numbers together then at the end you add them all up.Step-by-step explanation:
If we simplify like terms on left and right sides we gwt
16x + 9 = 4x
Its B
16 because 40-12=28 and Samad will be 28 on 16 years. In 16 years his father will be 56 which is double of 28.
1/18 can't be simplified because 1 cant be simplified. What ever happens to one side of the equation happens to the other, so nothing can happen to the 1 so nothing can happen to the 18
It cant be simplified
