Step-by-step explanation:
take the unknown number as x
2 × x + 6
2x + 6
So,
Notice that y is equal to two different equations.
Since we know that, we can simply put the right sides of both equations side-by-side.
-6x + 7 = 8x - 21
Add 6x to both sides
7 = 14x - 21
Add 21 to both sides
28 = 14x
Divide both sides by 14
2 = x
Substitute in the second equation
y = 8(2) - 21
Distribute
y = 16 - 21
Collect Like Terms
y = -5
Check
-5 = -6(2) + 7
-5 = -12 + 7
-5 = -5 This checks.
Check in second equation
-5 = 8(2) - 21
-5 = 16 - 21
-5 = -5 This also checks.
S = {(2,-5)}
The answer should be the first image.
Answer: a) The function :
f(x) = 5x + 1000
b) f(x) = 2250 dollars
Step-by-step explanation: Please find the attached file for the solution
Answer:
1/6
Step-by-step explanation:
