Question

pls is very urgent solve in elimination method :
1.3x-4y=-13.5,x-3y=3
2.4x-3y-23=0,2x-5y=36​

Answer 1

Step-by-step explanation:

3x-4y=-13.5........(1)

x-3y=3... ...........(2)

multiply (2) by 3=>

3x -9y = 9..........(3)

Now solving (1)&(3)

-5y = 22.5

y = - 4.5

so x will be=>

3x -9y = 9

3x = 9+9(4.5)

x = 16.5

2]

4x-3y-23=0........(1),

2x-5y=36........(2)

multiply (2) by 2

4x -10 y = 72........(3)

now solve (1) &(3)

-7x = 49

x = -7

now y will be

4x-3y-23=0

3y = 4(-7) -23

3y = -28 -23

y = -51/3

Hope it helps uh