Answer: 
Step-by-step explanation:
1. Multiply by <em>y</em> both sides of the equation, as following:

2. Now you must multiply by 33 both sides of the equation, as following:

3. Now you must divide both sides of the equation by 9. Therefore, you obtain:

Answer:
R=-4
Step-by-step explanation:
-3(2r+7)=3
-6r-21=3
-6r=24
r=-4
I hope this is correct and have a great day
The new price after the price increase of Nu 40 will be Nu 840.
<h3>How to calculate the price?</h3>
The price of a pant after n Nu 40 price increases will be:
= 800 + 40
= 840
The expected weekly sales as a function of the number of price increases will be:
= n - 1) × 800
= (30 - 1) × 800
= 29 × 800
= 23200
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Answer:
r = -4
Step-by-step explanation:
2r + 7 = - 1
2r = - 1 - 7
2r = - 8
-3 dollars because if i owe you 2 dollars and i give you 5 dollars back that means you now owe me 3 dollars, therefore you are negative 3 dollars