Question

x+y=5 and x-y=7 ;then x=?

Answer 1

Hey mate!

Here is your answer > >

x+y=5....... (1)

x-y=7.......... (2)

Adding ( 1 ) & ( 2 )

x+y+x-y=5+7

2x=12

x=12/2

x=6

Hope it helps!

Thankyou ☆ ☆

Answer 2

hello mate....!


given.....


$x + y = 5 \\.....eqn \: 1 \\ \\ x - y = 7.......eqn \: 2 \\ \\ add \: the \: both \: eqns....... \\ \\ x + y + x - y = 5 + 7 \\ \\ 2x = 12 \\ \\ x = \frac{12}{2} \\ \\ x = 6 \: \: \: \: \\ \\ this \: x \: value \: sub \: in \: eqn \: 1 \: or \: 2 \: we \: get \: y \: value...... \\ \\ eqn \: 1 = > \\ \\ 6 + y = 5 \\ \\ y = - 1 \\ \\ hope \: it \: helps \: u \: dear ....$