Question

Given f(x) = 3x – 1, solve for x when f(x) = -7.

Answer 1

x = -22

Explanation:

given:

`f(x) = 3x - 1`

solve for x, when:

`f(x) = -7`

replace x with -7

~~~~~~~~~~~~

➡️
`x = 3(-7) - 1`

➡️
`x = -21 - 1`

➡️
`x = -22`

Answer 2

x = -2

Explanation:

Given f(x) = 3x – 1

f(x) = -7

3x-1 = -7

3x = -7+1

3x = -6

x = -2