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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.
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@zzr0ck3r is this A or C ?
a
THANK YOU !! (:
c is to confusing to say why not, but you would have 3x-4y = 7x+-y-5 = 0 thats not fun:)
np
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