Damon *Algebra

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can you please break this equation down for me.I saw how you got 0,0 but im confusing my self on the rest of the problems such as 3x+2y=-8
2x-3y=-1
heres my answer (-2,-1) am i correct?

  • Damon *Algebra -

    To find out if you are right or not, put your answer (x =-2, y=-1) back in each equation

    equation 1
    3(-2) + 2(-1) = ??? -8
    -6 - 2 = -8 sure enough

    equation 2
    2(-2) - 3(-1) = ??? -1
    -4 + 3 = -1 sure enough so you did it right

  • Damon *Algebra -

    Now the how :

    equation 1
    when x = 0, y = -8/2 so y intercept at (0,-4)
    when y = 0, x = -8/3 so x intercept at (-8/3,0)
    draw that line
    equation 2
    when x = 0, y = 1/3 so (0,1/3)
    when y = 0, x = -1/2 so (-1/2, 0)
    graph
    see if they hit each other at (-2,-1)

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