solve the following eqn 5x +7y = 17 and 3x - 2y =14
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here iam using
elimination method
5x+7x=17
3x-2y=14
3(5x+7x=17
5(3x-2y=14
by multiplying
15x+21=51
15x-6y=70
-. +. -
27y=21
y=21/27
y=7/9
put the value in equation 1st
5x+7(7/9) =14
5x+49/7=14
5x=14-49/7
5x=14-7
5x=7
X=7/5 answer
elimination method
5x+7x=17
3x-2y=14
3(5x+7x=17
5(3x-2y=14
by multiplying
15x+21=51
15x-6y=70
-. +. -
27y=21
y=21/27
y=7/9
put the value in equation 1st
5x+7(7/9) =14
5x+49/7=14
5x=14-49/7
5x=14-7
5x=7
X=7/5 answer
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