Question

101x+99y=200
99x-101y=400

X=?
Y=?

Answer 1

Answer:

Step-by-step explanation:

101x=99y=200; eq. 1

99x-101y=400; eq. 2

Isolate x from eq. 1;

we get

x=$\frac{200-99y}{101}$

Substitute value of x in the eq. 2

we get

$99\frac{200-99y}{101}-101y=400;$

by solving this we get

$y=\frac{-10300}{10001}; putting- this -value-in- eq.1$

x=$\frac{200}{101}-99\frac{(-10300)}{10001}  \\x=\frac{29900}{10001}$

Answer 2

Answer:

it is very difficlt ...........