1.

Solve the simultaneous equations 5 x − y = 8 7 x + 4 y = 22

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X = 2✔︎ and Y = 2✔︎

SOLUTION :-

5x - y = 8 .....i)

7x +4y =22....ii)

multiplying equation i) by 4

20x - 4y = 32....iii)

add EQUATION iii) nd equation ii)

20x - 4y = 32

+

7x + 4y = 22

27x = 54

x =  \frac{<klux>54</klux>}{27}

x = 2

X = 2

puting VALUE of x = 2 in equation i)

5x - y = 8

5×2 - y =8

10 - y = 8

- y = 8 -10

- y = -2

y = 2

y = 2

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