Question

SOLVE ASAP! Given f(x) = -5x + 1, solve for x when f(x) = -4.

Answer 1

Hello !

Answer:

`\boxed{\sf x=1}`

Explanation:

We want to find the value of x that satisfies the following equation :

`\sf f(x)=5`

First of all, let's replace f(x) with its expression :

`\sf -5x+1=-4`

Then let's substract 1 from both sides :

`\sf -5x+1-1=-4-1\\-5x=-5`

Finally, let's divide both sides of the equality by -5 :

`\sf (-5x)/(-5) =(-5)/(-5) \\\boxed{\sf x=1}`

Have a nice day ;)

Answer 2

x = 1

Explanation:

Substitute f(x) = -4 as we get:-

-4=-5x+1

-4-1=-5x+1-1 —> subtract both sides by 1

-5=-5x

-5/-5=-5x/-5 —> divide both sides by -5

1=x

Therefore x = 1