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Mathematics
Tiggy
20 July, 08:51
14x+5y=31 and 2x-3y=-29
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Trey
20 July, 09:40
0
I will assume you are trying to find x and y. x = - 1, y = 0=9
Step-by-step explanation:
Multiply the second equation by 7 and subtract the two.
14x + 5y = 31
- (14x - 21y = - 203)
This gives 26y = 234. Divide both sides by 26. y = 9
Then substitute y into any equation. I'll use 2x - 3y = - 29
2x - 3 (9) = - 29
2x - 27 = - 29
2x = - 2
x = - 1
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Justice Robinson
20 July, 11:12
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yes is proportional
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