solve the following pair by elimination method 3x+4y=10,2x-2y=0
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3x+4y=10 ------1
2x-2y=0 --------2 ×2
Add 1 and 2
4x-4y=0
3x+4y=10
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7x=10
x=10/7
Substitute the value of x in 2,
2×10/7-2y=0
-2y=-20/7
y= 10/7
2x-2y=0 --------2 ×2
Add 1 and 2
4x-4y=0
3x+4y=10
------------------
7x=10
x=10/7
Substitute the value of x in 2,
2×10/7-2y=0
-2y=-20/7
y= 10/7
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