Answer:
4
Step-by-step explanation:
Step 1: Write out expression
(3x + 8) - (2x + 7)
Step 2: Distribute negative
3x + 8 - 2x - 7
Step 3: Combine like terms
x + 1
Step 4: Substitute
3 + 1 = 4
It would cost about $4.50
Every few days, on my way home from work, I pull into Ahmad's
Friendly Fuel and fill up my car's gas tank.
His price has been $2.29 per gallon for almost 4 years now, and it still is.
I don't always buy the same amount of gas, but no matter how much I buy,
my cost always fits the linear equation ...
Cost = (2.29) · (number of gallons) dollars.