Question

Is x=7 a solution to the equation shown below? Justify your yes no response. 6x+5=x^2 - 2

Answer 1

6x + 5 = x² - 2

Replacing with x = 7, we get:

6(7) + 5 = (7)² - 2

42 + 5 = 49 - 2

47 = 47

Given that we got the same result at both sides of the equal sign, then x = 7 is a solution