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34kurt
3 years ago
11

Plz help answer y=2x-3 x+y=18

Mathematics
1 answer:
hram777 [196]3 years ago
4 0
Y = 2x-3 
x + y = 18 
Since you already know what y is equal to, we can plug that in into the second equation. 
x + (2x-3) = 18 
x + 2x -3 = 18 
3x -3 = 18
Add 3 to both sides of the equation. (By doing this, we can isolate the 3x on the left side by getting rid of the -3) 
3x = 21 
Divide 3 on both sides 
x = 7
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Step-by-step explanation:

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Mr. Gonzales has only 42.50 to spend he wants to buy 29 t shirts including tax and some bracelets that cost 4.50 each including tax.

Now, to find the number of bracelets he can buy.

Let the number of bracelets he can buy be x.

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