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3x+y=15
2x+y=11
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Step-by-step explanation:
3x+y=15 ....1
2x+y=11.......2
subtraction 1 by 2
3x+y=15
2x+y=11.
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x = 4
put x= 4 in eq 2
2*4+y = 11
8+y = 11
y = 3
so x= 4 and y= 3
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