Question

f)2(x – 3y) + 7y=-1
3(3x – 4y) +2(-2x + 3y)=-28
metoda reducerii
repede va rog​

Answer 1

Explicație pas cu pas:

f)x=

$\frac{ - 1}{2} - \frac{1}{2}y$

y apartine lui R

2)x=

$- \frac{28}{5} + \frac{6}{5} y$

y apartine lui R