Question

4x-y=1
4x+3y=2
Me ajudem drxxxxxxx

Answer 1

$> resolucao \\ \\ \geqslant sistema \: de \: equacao \\ \\ 4x - y = 1 \times (3) \\ 4x + 3y = 2 \\ - - - - - - - - - \\ 12x - 3y = 3 \\ 4x + 3y = 2 \\ \\ 16x = 5 \\ x = \frac{5}{16} \\ \\ \\ 3y = 2 - 4x \\ 3y = 2 - 4. \frac{5}{16} \\ 3y = 2 - \frac{20}{16} \\ 3y = \frac{12 \div 4}{16 \div 4} \\ 3y = \frac{3}{4} \\ y = \frac{ \frac{3}{4} }{3} \\ y = \frac{3}{4} \times \frac{1}{3} \\ y = \frac{3 \div 3}{12 \div 3} \\ y = \frac{1}{4} \\ \\ \\ s \: > \: \: ( \: \: x = \frac{5}{16} \: \: \: e \: \: \: y = \frac{1}{4} \: \: \: ) \\ \\ > < > < > < > < > < > < > < > < > >$