Answer:
4
Step-by-step explanation:
Add 12 and 16 ( 28 ) then add 3 and 4 ( 7 ) lastly, you will divide 28 and 7 to get 4
x = 160 gal
y = 80 gal
160 gallons of water and 80 gallons of premium antifreeze solution must be mixed.
Disturb -4 into the parentheses
-24x-12=-12
add 12 both sides
-24x=0
divide-24 both sides
x=0
Remember to follow PEMDAS. (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction)
4^2 = 4 x 4 = 16
16/4 = 4
4 - 4 + 16
Combine
4 - 4 = 0 + 16 = 16
16 is your answer
hope this helps