Question

Determine the number of months for which the total cost of the systems will be equal. Estimate your answer to the nearest whole number.

Answer 1

Answer:

Answer is 351/20 or 17.5

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

35x+99=15x+450

Step 2: Subtract 15x from both sides.

35x+99−15x=15x+450−15x

20x+99=450

Step 3: Subtract 99 from both sides.

20x+99−99=450−99

20x=351

Step 4: Divide both sides by 20