Question

(ii) Solve: x +y =6; x-y =4.​

Answer 1

2X=12

X=6

substitute X=6 in eqn

X-Y=4

6-y=4

-y=4-6

-y=2

y=2

Answer 2

Answer:

x=5 and y=1

Step-by-step explanation:

☯Using Substitution method:

x+y = 6

x = 6-y _____(1)

Now,

x-y = 4

☯ On substituting the value of x

6-y - y = 4

6-2y = 4

-2y = 4-6

-2y = -2

$y = \frac{-2}{-2} = 1$

∴ $y=1$ _________(2)

☯ On substituting (2) in (1)

x = 6-1 = 5

☯ Hence, x=5 and y=1

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