Answer:
a = 25
b = 100
c = 17
d = 68
Step-by-step explanation:
Hello :
<span>3y = x + 6 ...(1)
y – x = 3...(2)
by (2) : y = x+3...(*)
subsct in (1) :
3(x+3) = x+6
3x-x= -9+6
2x= -3
x=-3/2
subsct in (*) : y =-3/2 +3 =3/2</span>
39.50-23.76-2.57-1.49=11.68
take the sales and subtract the expenses