Question

(ii) 4x – 3y=23
3x + 4y= 11

solve by cross multiplication method find x and y​

Answer 1

a) By elimination method 11x - 5y + 61 = 0 ; 3x - 20y - 2 = 0b) By cross multiplication method 4y - 3x - 23 = 0; 3y + 4x - 11 = 0c) By substitution method 5y - 9x = -24; 5y = 11x

Answer 2

Answer:

y=3.571

x=10.713

Step-by-step explanation:

4x-3y=23

3x+4y=11

x=23-3y/4

3[23-3y/4]+4y=11

3[23-3y]+16y=44

69-9y+16y=44

7y=44-69

y=25/7

y=3.571

x=23-3[3.571]x4

x=10.713