X+y=7,2x-3y=9 find the solution
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Answered by
0
Answer:
The answer is x+2y=2
Step-by-step explanation:
2x+3y=9
x+y=7
________
x+2y=2
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Answered by
4
x+y=7...................1)
2x-3y=9................2)
Multiplying the 1) equation by 3
3(x+y=7)
=3x+3y=21..............3)
By adding 2) and 3) equations
2x-3y=9
3x+3y=21
.....................
5x=30
x=30/5
x=6................4)
By 4) let’s put the value in equation 1)
x+y=7
6+y=7
y=7-6
y=1...............5)
X=6 and Y=1
2x-3y=9................2)
Multiplying the 1) equation by 3
3(x+y=7)
=3x+3y=21..............3)
By adding 2) and 3) equations
2x-3y=9
3x+3y=21
.....................
5x=30
x=30/5
x=6................4)
By 4) let’s put the value in equation 1)
x+y=7
6+y=7
y=7-6
y=1...............5)
X=6 and Y=1
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