x=2,y=1 solve 13x-6y=20,7x+4y=18
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Answered by
3
If x = 2,y = 1
13(2) - 6(1) = 20
7(2) + 4(1) = 18
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Answered by
2
Step-by-step explanation:
X=20+6y/13
Substitute in the second in the second eq
7(20+6y/13)+4y=18
140+42y/13+4y=18
140+42y+52y=234
94y=234-140
y=94/94
Therefore y=1
X=20+6×1/13
X=26/13
Therefore X=2
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