3x-5y=20
7x+2y=17
pls tell the answer
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Answer:
3x-5y=20
us a question
step 1 :we find a x,and y value
7x+2y=17
step 2:(3x-5y=20)7or7x
3x*7x=21x
-5y*7y=-5
20*7=140
that = +21x-35y=140
step:3=(7x+2y=17)3or3x
3x*7x=+21x
3y*-2y=-6y
3*17=51
that =+21x-6y=51
step:3=+21 is convert into-2
-6y is convert into+6
+51 is convert into-51
=+21x-35y=140
-21x+6y=-51
=+21x-21x=0
=-35y+6y=-29y
=+140-51
step 4: -29y=89
total=y=89/-29
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