Question

Shane bought 36 gallons of gas this week this amount is 6 gallons more than twice the amount of gas he bought last week how many gallons of gas in Shane by last week

Answer 1

so, she bought 15 gallons of gas last week

Step-by-step explanation

Step 1

Let

36 gallons this week

x= number of gallons of gas Shane bought las week

this amount is 6 gallons more than twice the amount of gas he bought last week , then

`36=2x+6`

Step 2

solve for x

`\begin{gathered} 36=2x+6 \\ \text{subtract 6 in both sides} \\ 36-6=2x+6-6 \\ 30=2x \\ \text{divide each side by 2} \\ (30)/(2)=(2x)/(2) \\ x=15 \end{gathered}`

so, she bought 15 gallons of gas last week