Question

Find the value of y when x = 3: y = 2x + 1. Explain how you found your answer.

Answer 1

y=7

Explanation:

We know that x = 3, so we can plug in the number 3 where ever we see x in the second equation.

y = 2x + 1

y = (2 * 3) + 1

y = 6 + 1

y = 7