Question

5x+4y=36
X +34 +2:15
x+y+42=4
​

Answer 1

Resposta:

$a)5x + 4y - 36 = 0 \\ b)x + 34 + \frac{2}{15 } = 0 \\ \frac{15x + 510 + 2}{15} = \frac{0}{15} \\ 15x + 512 = 0 \\ 15x = - 512 \\ x = \frac{ - 512}{15}$

$c) \: \: x + y = 4 - 42 \\ x + y = - 38$