Question

Rezolvati in R-R sistemul de ecuatii prin metoda substitutiei{2x-21x=2 x-8y=-4

Answer 1

2x−21x=2
(2x+−21x)=2
−19x=2
$\frac{-19x}{-19} = \frac{2}{-19}$
$x= \frac{2}{19}$

x−8y=−4
x−8y+8y=−4+8y
x=8y−4