Question

0.05x-0.06y=0.20 and 0.06x+0.05y=0.85 solve it​

Answer 1

0.05x-0.06y = 0.20 ••••••••(i)

0.06x + 0.05y = 0.85•••••••(ii)

OR

5x - 6y = 20 •••••••(iii)

6x + 5y = 85 •••••••(iv)

FROM...

[5 × equation(iii)] + [6 × eqn.(iv)]

● 25x - 30y = 100

36x + 30y = 510

----------------

61x = 610

■ x = 10

FROM EQN. (iii)

5 × 10 - 6y = 20

6y = 50 - 20

6y = 30

■ y = 5