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Stella [2.4K]
3 years ago
10

Algebra

Mathematics
2 answers:
Rainbow [258]3 years ago
6 0
2x + 3y = 12 
2*3 6  x = 3 because 2 times 3 equals 6y = 2 because 3 times 2 equals 6. 6+6=12.
4(3) - 3(2) = 6\/        \/12       6      = 6  

(I'm copy-pasting from the work I just did on another tab. I know the page would reload)
vladimir2022 [97]3 years ago
5 0
(2x + 3y = 12) x (-2)
(4x - 3y = 6) x 1

-4x - 6y = -24
4x - 3y = 6

You can cancel out the x values by adding the two equations together. 
(-4x + 4x) + (-6y - 3y) = (-24 + 6)
-9y = -18
y = 2

Solve for x now...
4x - 3(2) = 6
4x - 6 = 6
4x = 12
x = 3

Check... (x = 3, y = 2)
2(3) + 3(2) = 12 
6 + 6 = 12
12 = 12 <- this works! 

4(3) - 3(2) = 6
12 - 6 = 6
6 = 6 <- this works!
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At the movie theatre, child admission is $5.10 and adult admission is $9.70. On Thursday, 128 tickets were sold for a total sale
kvv77 [185]

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53

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Let x be the number of children tickets sold and y be the number of adult tickets sold. Then

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