Question

i. Solve the pairs of linear equation by substitution method:-
2x+4y=8
and
9x-5y=6​

Answer 1

Answer:

x = 52/23

y = 30/23

Step-by-step explanation:

Equation 1 - 2x + 4y = 8

Equation 2 - 9x - 5y = 6

2x + 4y = 8

x + 2y = 4

x = 4-2y

9x - 5y = 6

9 (4-2y) - 5y = 6

36 - 18y - 5y = 6

36 - 23y = 6

23y = 30

y = 30/23

x = 4 -2y

x = 4 - 2*20/23

x = 4 - 40/23

x = 92 - 40/23

x = 52/23

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Answer 2

hope you see the attachment..