anna426white anna426white

07-12-2016
Mathematics

contestada

solve by substitution
x=-3y-2
-4x-5y=8

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Аноним Аноним

07-12-2016

x = -3y - 2
-4x - 5y=8

-4(-3y - 2) -5y = 8
12y + 8 - 5y = 8
7y + 8 = 8
7y = 0
y = 0

x= -3(0) - 2
x = -2

solutions (-2,0)

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MISTAFUZZY2000 MISTAFUZZY2000

07-12-2016

the solution is( -2,0) did that in my head

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