Mathematics, 03.07.2019 14:20 lizzyhearts

What is the best first step for solving the given system using substitution while avoiding fractions? 2x+6y=7 6x+18y=24 a. solve for x in the first equation. b. solve for y in the first equation. c. solve for x in the second equation. d. solve for y in the second equation.

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What is the best first step for solving the given system using substitution while avoiding fractions...