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MATH
I NEED TO SOLVE FOR Y AND X im getting rele confused on this. ok here is the prob. x+y=5 x2y=4 equation 1 x+y=5 equation 2 x2y=4 Multiply equation 1 by 1. Add equation 1 to equation 2. The x term cancels. Solve for y. THEN,
asked by Tony on December 17, 2006 
Substitution MethodPlz help
Use the Substitution method to solve the system of equations. x + y = 4 x  y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=4 (y+2) + y = 4 solve for y. Then, x= y+2 i don't get
asked by Svetlana on October 17, 2006 
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Can some one show me how to use the Substitution method to solve the system of these equations. x + y = 4 x  y = 2 x + y = 10 y = x + 8 on the first set. Solve for either x or y in either equation, then put that value into the
asked by mike on July 1, 2007 
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so would the new eqaution be... 2x+8=10 then.. 2x=2 x=1? We know that y = x + 8. So if x + y = 10, then x + x + 8 = 10. but what about the y?ANd what do I do afetr that? If you know what x equals, then you can calculate what y
asked by Sammy on November 4, 2006 
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y=2x^2+5x3 a)determine the xintercepts b)determine the vertex c)determine the axis of symmetry d)determine the maximum or minimum value, stating whether it is a maximum or a minimum e)determine the range can i get the equations
asked by Shay on January 18, 2007 
Algebra
5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x  6 6y = x + 2 The y intercepts is when x=0 So put in x=0 in each, and solve for y. The x intercepts is when y=0, put
asked by Margie on October 26, 2006 
Substitution Method!PLZ HELP 2222!!
y2x=5 3yx=5 In the top equation: 1) y=2x 5 Put that in the second equation 3( ) x =5 solve for x, then put that value of x back in to 1) to solve for y. So would it be: 3(2x5)=5? would it?PLz help me bob and margie!
asked by Matthew on November 5, 2006 
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Hello, This is the last of questions I have for my practice assignment. Again I will put what I got. Thanks for your help. 1.) Solve the system using substitution. Write answer as an ordered pair. 4x+2y=8 5x2=y A.) First
asked by Kris on March 21, 2013 
math
determine the equation of the line in y=mx+b form that passes through 1. (8,1) & (9, 2) 2. (3,7) & (5, 9) 3, (4,0) & (4,6) Part B ) For each equation Rewreite the y=mx+b equation in general form Ax+by+c=0 where A is positive b
asked by thomas on February 8, 2007 
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Can someone show me step by step how to do this problem to have an example to go by so I will be able to do my other problems. Thanks Solve by substitution 4x12y=5 x+3y=1 I know that you have solve one of the equations. I have
asked by jessica on May 6, 2007 
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How do i solve inequalitites with three variables. I still can't figure it outplease help. x+y=1 yz=3 2x+3y+z=1 THE ANSWERS ARE3,2,1 HOW DID THEY GET THAT ANSWER. This can be solved a number of ways. 1) subsitition 2)
asked by Jasmine202005 on October 22, 2006