Question

solve by using elimination method
x + y = 8
2x - y = 7​

Answer 1

Answer:

x+y=8

2x-y=7

multiply equation 1 by (2) and equation 2 by (1)

the equation becomes

2x+2y=16

2x -y =7

2x is cancel

3y=9

y=3

putting y=3 in equation 2

2x-3=7

2x=10

x=5

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