Question

find the values of (x-y) if
3x+4y
=11; 4x+3y=10​

Answer 1

Explanation:

4x+3y=39]×3→(1)

3x+4y=10]×4→(2)

⇒eq(2)−eq(1)

⇒12x+16y12x−9y=40−117

⇒7y=−77

y=−11

3x−44=10⇒3x=5y

x = 18

x -y = 18 -(-11)

= 18 + 11 = 29

hope this will help you