examples
on substition problems for systems of equations
click
here to return to the home page systems of equations
examples
on substition problems for systems of equations
click
here to return to the home page systems of equations
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HOW TO DO THE PROBLEM |
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Y= -X+6 X-2Y= -6 X-2(-X+6)= -6
Y= -4+6
( 4 , 2 )
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* First you should substitute what Y equals in the top equation into where the Y is in the second equation. * Next you should solve the problem as shown to the left. * By now you should have what X equals * Now that you have what X equals you should substitute it back into where the X is in the first equation * Now you have your X and your
Y
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X= Y-15 X+Y= -5 Y-15+Y= -5
X=5-15
( -10 , 5 ) |
* First you should substitue what the x equals in the first equation into where the x is in the second equation * next solve that equation * Now you should have what y equals * now go back to the second equation and put what y is back into the first equation t o get x * now you solve and you should have what
x and y equal
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