Question

Half the gas in the tank was used when

Michelle drove to visit her sister. She put 6
more gallons of gas in the tank when she got
there. After putting in gas, she had 16
gallons in the tank. How much gas did she
have before she drove to her sister's house?
Equation and answer pleaseeeee

Answer 1

Answer: She had 20 gallons to begin with.

Explanation:

16 = 6 + 1/2x

x = the amount she had to start with

Subtract 6 from each side

10 = 1/2x

Divide each side by 1/2

20 = x