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please help me with this I have a test on it today

Algebra
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3x+6y=10

2x+4y=5

I worked it out and its not right

Mar 26th, 2015

3x+6y=10

2x+4y=5 

using equation 1 to get the value of x

3x+6y=10

3x=10-6y

x=10-6y/3=10/3-2y

replace the value of x in equation 2

2x+4y=5

2(10/3-2y)+4y=5

20/3-4y+4y=5

20/3+0y=5

the equation has no solutions since the the values of x and y are zero




Mar 26th, 2015

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Mar 26th, 2015
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