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Math 8R - HELP!

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Multi-Step Equations
Systems of Equations

x + y = 0
5x + 2y = -3

this is what i got so far....


x + y = 0 ----> x = 0 - y

5x + 2y(0-y) = -3

please help!!!!

  • Math 8R - HELP! - ,

    you have it right so far

  • Math 8R - HELP! - ,

    i know but can you please help me do the rest

  • Math 8R - HELP! - ,

    you take 2 times 0 to get rid of the y, then you have 5x= negative three figure out x or else you are never going to learn. Is this due tomorrow?

  • Math 8R - HELP! - ,

    yes

    you don't have to give me the answer

    I just wanted you to write it out so that I can understand and figure out the answer myself.

  • Math 8R - HELP! - ,

    2x0=0
    5x=-3
    what is x?

  • Math 8R - HELP! - ,

    x + y = 0
    5x + 2y = -3

    y=-x

    5x+2(-x)=-3
    5x-2x=-3
    3x=-3
    divide both sides by 3

  • Math 8R - HELP! - ,

    i got -0.6.... i don't think that's the answer for x...

    I'm solving for x and then I have to su solve for y

  • Math 8R - HELP! - ,

    that is not right what grade are you in bobpursley?

  • Math 8R - HELP! - ,

    gtg

  • Math 8R - HELP! - ,

    bobpursley is a teacher on jiskha hw help

  • Math 8R - HELP! - ,

    5x + 2y(0-y) = -3

    don't you minus 2y on both sides (under -y)????

  • Math 8R - HELP! - ,

    yeah.you are right.

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