Answer: 120
Step-by-step explanation:
600x.80=480, 600-180= 120
Answer:
x=3
y=5
x+5y=28 (i)
-x-2y=-13. (ii)
add equation 2 from equation 1
x+5y=28
-x-2y=-13
3y=15
put the value of y in equation 1
x+5*5=28
x+25=28
x=28-25