the pair of equations -3x+4y= 7 and 9/2x-6y+21/2=0 has ............ solutions
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Answered by
3
-3x+4y=7
9/2x-6y=-21/2
-3x+9/2x=7-21/2
4y-6y=7-21/2
x= 11/2,y= 14/4
9/2x-6y=-21/2
-3x+9/2x=7-21/2
4y-6y=7-21/2
x= 11/2,y= 14/4
Answered by
1
Equations are not match
From 3rd
-3x + 9/2x =7-21/2
=> x = - 7/3
From 4th
=> y = 7/4
From 3rd
-3x + 9/2x =7-21/2
=> x = - 7/3
From 4th
=> y = 7/4
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