ashantigibson939 ashantigibson939

18-11-2018
Mathematics

contestada

i need help with elimination.

Respuesta :

TheKoolKid1O1 TheKoolKid1O1

18-11-2018

7x + 4y = -3

-7x + 5y = 12

add the two equations in order to cancel out a variable

9y=9

y=1

then substitute for either equation

7x + 4(1) = -3

7x + 4 = -3

7x=-7

x=-1

(-1,1)

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-TheKoolKid1O1

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