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OpenStudy (anonymous):
Solve the system of equations using linear combination. a+c=9 8a+4.5c=58 can anyone help me please.
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OpenStudy (freckles):
you can multiply the first equation by -8 I chose to multiply the first equation by -8 because the second equation has an 8 in front of the a I'm going to attempt to eliminate the a and solve for the c so multiply the first equation by -8 and add the equations together
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