Question

6x+2y=80,4x+2y=50 solve the simultaneous equation​

Answer 1

difference from equation 1st and 2nd

6x+2y=80

4x+2y=50

2x=30

x=15

in equation 1st

90+2y=80

2y=80-90

2y=-10

y=-5

check

6×15+2×-5=80

90-10=80

hope you can understood

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