Answer:

Alternatively you can write it as;

Step-by-step explanation:
One time service fee=$99
Rate of service=$50/hour
let unknown hours=x
Therefore the equation is

or you can further simplify it to:

And you can then solve for x to be 9 hours.
4y - 8 > 10
add 8 to both sides
4y > 18
Divide both sides by 4
y > 18/4
y > 9/2
y > 4.5
2x - 2y = 12
-2x - 3y = -22
solution could be (x,2)
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2x - 6y = 10
x + 8y = 5
solution could be : (5,y)
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3x - y = -5
x + 4y = 7
solution could be : (x,2)
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x + y = 2
2x + y = 13
solution could be : neither....is this one written correctly ?
You want to divide 48 by 1 2/5 which is 240/7