Andre does not understand why if x is a solution to the equation 3-x=4 then x is also a solution to the equation 12=9-3x. write a convincing explanation as to why this is true

4 = 3 - x

12 = 9 - 3x

3 x 4 = (3 x 3) - (3 x X) you still get

12 = 9 - 3x

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

)

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney