lola-jackson_60a27cb8563dd
lola-jackson_60a27cb8563dd
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3x + y = 820 2x - y = 340 de la primera ecuacion: y = 820 -3x sustituyendo en la 2da 2x - (820 - 3x) = 340 2x - 820 + 3x = 340 5x = 340 + 820 5x = 1160 x = 1160/5 x = 232 3(232) + y = 820 696 + y = 820 y = 820 - 696 y = 124 x=23…