Evaluate - 3x - 4x for x = - 1.

7

Step-by-step explanation:

Plug in x = - 1 into the expression

-3 (-1) - 4 (-1)

= 3 + 4

= 7

Step-by-step explanation:

To solve this equation, you put - 1 in the both x's

-3 X - 1 - 4 X - 1

Then you solve - 3 times - 1 to get 3 (a negative times a negative makes a positive)

After that you solve for 4 - (-1) to get - 4 (a negative times a positive makes a negative)

Then you subtract 3 from - 4 to get the answer

3 - (-4) = 7