Question:

How do I do this Algebra problem?

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1. 6.95x+19.95y=60.75

2x+4y=14

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  1. using substitution would be easiest since the first equation does not use whole number integer values. so just solve for x or y in the second equation (2x = 14 - 4y => x = 7 - 2y) and plug 7 - 2y into the x in the first equation. now it should be pretty simple to solve for y, and after doing so, just plug the y-value back into one of the equations to find the x. when you have numbers for both x and y, you can plug them into both equations to make sure they work in both to check your solutions.


  2. its a substitution problem

    2x+4y=14

    2x=14 - 4y

    x=7 - 2y    

    now take the other equation and substitute the value of x

    6.95(7 - 2y)+19.95y=60.75

    48.65- 13.9y + 19.95=60.75

    48.65 + 6.05y = 60.75

    6.05y= 12.1

    y=2

    now take 2x+4y=14

    as y=2

    therefore 2x+4(2)=14

                 2x+8=14

                  2x=6

                 x=3

    Ans: y=2

            x=3

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