1) Solve the following simultaneous equations
x + 2y = -1
2x - 3y = 12
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Answered by
0
Answer:
multiply by 2 equation no.....(1)
2x+4y= -2......(3)
2x-3y= 12......(2)
- + -
7y=14
y=14/7
《y=2》
put y=2 in equation.....(2)
2x-3y=12
2x-3×2=12
2x-6=12
2x=12+6
2x=18
x=18/2
《x=9》
Answered by
1
Answer:
Sorry 1st ans.is wrong.
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