Question

(ii) 5x + 3y = 19xy

7x - 2y = 8cut
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Answer 1

Answer:

5x + 3y = 19xy - eq.1

7x - 2y = 8xy - eq.2

Step-by-step explanation:

from eq. 1

x = 19xy - 3y / 5 eq.3

eq.3 put in eq.2

7 (19xy - 3y)/5 - 2y = 8xy

133xy - 21y - 10y = 5 × 8xy

133xy - 40xy = 31y

93xy = 31y

x = 31y/93y

x = 1/3

the value of x put in eq.3

1/3 = 19y/3 - 3y

1/3 = 19y - 9y / 3

1/3 = 10y/3

y = 1/10