Question

Como hallo A={4a +3b,27}
B={3a+7b,27}

Answer 1

4a + 3b = 27,
3a + 7b = 27;
a = (27 - 3b) / 4,
a = (27 - 7b) / 3;
(27 - 3b) / 4 = (27 - 7b) / 4;
81 - 9b = 108 - 28b;
28 - 9b = 108 - 81;
19b = 27;
b = 27 / 19 = 1,42

a = [27 - 3(1,42)] / 4;
a = (27 - 4,26) / 4;
a = 22,74 / 4 = 5,685.