Some one step by step explanation

2.)

-->

So y = -4.

3.)

Combine like terms:

-->

Isolate x --->

---->

So x = -2

4.)

-->

Combine like terms --->

This equation has many possible solutions.

5.)

-->

Combine like terms --->

---->

----->

So x = -1.

6.)

Distribute --->

This equation has many possible solutions.

c. (0.6,-1.4)

step-by-step explanation:

hope this

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: