3x + 1 = 10
Show work

x = 3

Step-by-step explanation:

3x + 1 = 10

subtract 1 from both sides of the equation

3x + 1 - 1 = 10 - 1

3x = 10 - 1

3x = 9

divide both sides of the equation by 3

3x/3 = 9/3

x = 9/3

x = 3

The first one is correct

Step-by-step explanation:

simply plug in numbers from 0 to 4 in the position of n, which, in this case is -2^n.

the form comes out to:

-2^0, -2^1, -2^2, -2^3, -2^4

notice how the exponent does not include the negative, so it always remains negative. The one you selected would have been correct if it was (-2)^n