3/5*3/3=9/15
1/3*5/5=5/15
15 is a common denominator.
The answer for 3 is 5 7/8
If one gallon is 21 miles, simply multiply 21 by five, for each of the five gallons and it is approximately 105 miles using 5 gallons of gas.
the 2 equations that need to be solved are [3x+5] and x-1. If you need the answer to what x is you'd solve it by evening out the problems. so first add one to both so you'd have 3x+6=x then you'd take the 3x and subtract it from both sides making it 6=-2x. Then divide 6 by negative 2 making it -3=x.
