Get Full Access to Lumos StepUp - SBAC Online Practice and Assessments - Grade 11 Mathematics
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Online ProgramSolve the system of equations below by replacing one equation with the sum of the two equations or by a multiple of the equation, and then adding the two equations together.
\(\begin{array}{rcl} {2x+y} & {=} & {1} \\ {2x+3y} & {=} & {7} \end{array}\)