Question

Amanda is comparing the costs of two cell phones and their corresponding monthly bills. She came up with the equation 45x+93 = 30x+123. Explain what the parts of this equation could represent for this situation, including the variables, the numbers 45 and 30, the numbers 93 and 123, and the solution to the equation.

Answer 1

x=2

Explanation:

`45x + 93 = 30x + 123 \\ 45x - 30x = 123 - 93 \\ 15x = 30 \\ x = (30)/(15) \\ x = 2`