6x+5y=7 & 7x+5y=8 find the value of x and y
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6x+5y=7
7x+5y=8 (×-)
6x+5y=7
-7x-5y=-8
add
-x= -1
x=1
6x+5y=7
6×1 +5y=7
5y=7 -6
5y= 1
y=1/5
x=1, y= 1/5
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