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Mathematics 8 Online
OpenStudy (anonymous):

Select the choice below that could be the first step in solving the following system of equations using substitution: 7x + -y − 5 = 0 3x − 4y = 2 A. Write the first equation in terms of y. B. Multiply the second equation by -7. C. Replace the right side of the second equation with the first equation. D. Multiply the first equation by -4.

OpenStudy (anonymous):

@zzr0ck3r is this A or C ?

OpenStudy (zzr0ck3r):

a

OpenStudy (anonymous):

THANK YOU !! (:

OpenStudy (zzr0ck3r):

c is to confusing to say why not, but you would have 3x-4y = 7x+-y-5 = 0 thats not fun:)

OpenStudy (zzr0ck3r):

np

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