What is the value of x in the equation 8 + 4 = 2(x - 1)?
13/2
Oь 11/2
О с 7
ed 5

The value of x in the equation is 7

Step-by-step explanation:

To find the value of x, we will follow the steps below:

8+4 = 2(x-1)

open the parenthesis on the right-hand side of the equation by multiply x-1 by the 2

8+4 = 2x - 2

12 = 2x - 2

Add 2 to both-side of the equation

12 + 2 = 2x -2 + 2

14 = 2x

Divide both-side of the equation by 2

14/2 = 2x/2

7 = x

x = 7

The value of x in the equation is 7

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)

3

step-by-step explanation: