Mathematics, 03.11.2020 01:10, who0fade

Need help Which is the best first step when solving the following system of equations?
50+40= 10
3c+20= 16

A. Multiply the first equation by -2.

B. Solve for d in the second equation.

C. Solve for c in the first equation.

D. Multiply the second equation by -2.

Answers: 3

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Need help Which is the best first step when solving the following system of equations?
50+40=...