Question

3x + 2y = 8
4x -3y=5
use the inverse method to solve the simultaneous equation

Answer 1

3x+2y=8. 1 eq

4x-3y=5. 2 eq

multiply eq 1 by 3 and eq 2 by 2

9x+6y=24. eq 3

8x -6y =10 eq 4

Add eq 3 and 4

17 x = 34

x =34/17

x=2

put x=2 in eq 1

3x +2y=8

3×2+2y=8

6+2y=8

2y=8-6

2y =2

y =2/2

y=1

x=2 and y=1