we know that
Erika earns
per hour
so
By proportion
Find how much she earn during the total hours of two weeks
The total hours of two weeks is equal to


therefore
<u>the answer is</u>

Y = -3/4x - 2
Add 2 and subtract y
-3/4x - y = 2
No fractions or negative
Multiply all by 4
-3x - 4y = 8
Now multiply all by (-)
Solution: 3x + 4y = -8