Question

if x=a,y=b in the solution of the pair of equation x-y=2andx+y=4 find the value of a and b​

Answer 1

Answer:

$a=3 & b=1$

Step-by-step explanation:

Substituting $x=a&y=b$ in the given equation.

We get,

$a-b=2→(1)$

Adding equation (1)&(2).

We get,

$a+b=1→(2)$

$⇒2a=6$

$⇒a=\frac{6}{2}$

$⇒\boxed{a=3}$

Substituting a=3 in (2) we get $\boxed{b=1}$

Therefore,

$a=3$

$b=1$