Mathematics, 27.06.2019 07:30 daevinepetersopa86on
Calcule o valor de x nos casos abaixo, sabendo que y = 3. a) 7x + 2y + x + 2y = 0 b) 2x + 3y - x + 3x = 5 c) 1/3x + 1/5y = 0 d) 1/2x + 1/3x + 1/4y = 2 e) 0,25x - 0,30x - 0,35x + 1,2y = 2 f) 0,25x - 0,3y - 0,35y + 1,20y = 0 alguém consegue me ajudar com esses exercícios por favor?
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Calcule o valor de x nos casos abaixo, sabendo que y = 3. a) 7x + 2y + x + 2y = 0 b) 2x + 3y - x + 3...
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