Answer:
13. x = 6
14. x = 3.5
Explanation:
13. To find x when f(x) = -17, set the equation f(x) equal to -17 and solve.
-3x + 1 = -17 Subtract 1 from both sides
-3x = -17 - 1
-3x = -18 Divide by -3
x = 6
14. To find x when g(x) = 31, set the equation g(x) equal to 31 and solve.
10x - 4 = 31 Add 4 to both sides
10x = 31 + 4
10x = 35 Divide by 10
x = 3.5