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т α т ч ★
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т α т ч ★ asked in Education & ReferenceHomework Help · 1 decade ago

10 points help plz........?

im having some difficulty with substitution Method on these 4 problems

please show me how to do them!

10 points

y=-12x+387

x+-1/3y+30

y=8/9x+30

y=-4x-14

11x-3y=-24

x+2y/2=8

138= 138/11y + 828/187x

y=-2x-45

1 Answer

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  • Mariah Baybee
    1 decade ago
    Favorite Answer

    y=-12x+387

    see how the y= something

    take that y information & plug it in the y in the bottom problem

    x+-1/3y+30

    x+-1/3(-12x+387)

    then just work out the rest of the problem

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