Question

Solve the following questions.
Solve : x + y = 4; x - y = 2.​

Answer 1

Answer:

x=3 ;Y=1

Step-by-step explanation:

by solving the equation we get

2x=6

therefore x=6/2

x= 3

if x is 3,then y should be 1

Answer 2

Answer:

$\boxed{x=3}\\\boxed{y=1}$

Step-by-step explanation:

Hi!

*Here:

$x+y=4\\x-y=2$

$\to$$We\ subtract:$

$x+y-y=4-y$

$\to We\ simplify:$

$x=4-y$

$\to We\ substitute:$

$4-y-y=2$

$4-2y=2$

$\to We\ clear:$

$4-2y-4=2-4$

$-2y=-2$

$\to We\ divide:$

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

$\longrightarrow So:$

$\boxed{y=1}$

$\to We\ substitute$

$x=4-y\\x=4-1$

$\longrightarrow So:\\\boxed{x=3}$

:)