Answer:
A. -(5y+2) + y = 5
Step-by-step explanation:
Solving the above Equation given to us in the Question,
-x + y = 5...... Equation 1
x - 5y = 2....... Equation 2
Step 1
We make x subject of the formula in Equation 2
---> x= 5y + 2
Step 2
This would be to substitute 5y + 2 for x in Equation 1
-x + y = 5...... Equation 1
-(5y+2) + y = 5
Hence, Option A is the correct option
B because uu can slove it and get the same answer for both equations
A=tip 1
b=tip 2
t=total tip
c-total cost
a+b=t
53+t=c
53*.06=a
53*.20=b
a=3.18
b=10.60
t=3.18+10.60
t=13.78
c=53+13.78
total cost=$66.78
12 use a calculator i did it
0.88888889
just devide 8 by 9
