Question

eliminate x-6z=15, 3x-z=4 with step by steps​

Answer 1

x-6z=15___(1)

3x-z=4___(2)

Using Elimination Method,

x-6z=15___(1) × 3

3x-z=4___(2) × 1

_____________

3x-18z=45

3x-z=4

________

-17z=40

z=40/-17

z= -40/7

Putting z=-40/7 in x-6z=15___(1)

x-6(-40/7)=15

x+240/7=15

x+240=15×7

x+240=105

x=105-240

x=-135.

Hence, x =-135.

z = -40/7.