Solve X plus 2Y equals -1 and 2X minus 3Y equals to 12
Answers
Answered by
0
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
.................
Answered by
0
Answer:
x+2y=-1
=x+y=-1/2
&
2x-3y=12
=x-y=12/2×3
=x-y=12/6
=x-y=2
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