Answer: -5 or -5/1
Step-by-step explanation: Rise over Run
<span>If k=f(z) and z=f(x) what is x=</span>y
Answer:
5
Step-by-step explanation:
We have an equation and are asked to find the input of x when y = 7.
The output = y = 7
The input = x
7 = 2x - 3
2x - 3 = 7
We need to find a number that multiplied by 2 which then is subtracted by 3 equals 7. We can use the backwards method to solve our answer.
2x - 3 = 7
7 + 3 = 2x
10 = 2x
Solve for x by dividing 2 from both sides :
x = 5.
Therefore, you would need an input of 5 to get 7 as the output.
Proof :
2(5) - 3 = 7
10 - 3 = 7
Well you would subtract 137-74, the number that it equals is your answer (:
20 is the answer because it is the only number that has positive and it says sum
