5x = 7y +21.
11x +4y +109=0
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5x-7y=21
11x+4y=-109
soul ×11 and soul 2×5
55x-77y=231
55x+20y= -455
after the soul 1 and 2 minus
and change the sign
55x-77y=231
55x+20y=-455
after the sign changing
-97y= 686
11x+4y=-109
soul ×11 and soul 2×5
55x-77y=231
55x+20y= -455
after the soul 1 and 2 minus
and change the sign
55x-77y=231
55x+20y=-455
after the sign changing
-97y= 686
ankitasharma1004:
isme reltion btana hai konsa bna hai
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