Question

Solve X plus 2Y equals -1 and 2X minus 3Y equals to 12

Answer 1

Answer:

y= -2

Step-by-step explanation:

Given

x + 2y = -1. ...... equ (1)

2x -3y = 12.........equ (2)

multiply equ (1) by 2 and subtract both equ

2x + 4y = -2

+2x - 3y = 12

- + = -

.........................

7y = -14

y = -14/7

y = -2

.................

Answer 2

Answer:

x+2y=-1

=x+y=-1/2

&

2x-3y=12

=x-y=12/2×3

=x-y=12/6

=x-y=2