Report - y = 4 + 2x · 2020. 6. 16. · -5x - 3y = -23 y = -39 + 5x-4x + 5y = 20 y = 4 + 2x 7x - 2y = -66 x = -4 + 3y-2x - 5y = -56 y = 16 - 2x Solve each system of equations using substitution.

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