A long distance phone call costs $1.75 plus $0.30 for each minute of the coll. Write and solve a
linear equation to find the length of a phone call that cost $7.45.
The cost of the phone call is found by 1.75 + 0.30 multiplied by the number of minutes the calls lasts. The cost of the call is 7.45 so 1.75 + 0.3x = 7.45. Begin by subtracting 1.75 from each side of the equation. That leaves 0.3x = 5.7. Then divide both sides by 0.3. This gives x = 19.
