Question

РЕШИТЕ СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!ПОЖАЛУЙСТА

Answer 1

$\frac{x}{4} + \frac{y}{4} = 2 \\ x = 20 - 2y$

$\frac{20 - 2y}{4} + \frac{y}{4 } = 2$

y=12

x=20-2•12

x=-4

Ответ: (-4;12)

Answer 2

{(х+у)/4=8/4 |:4

{(х+2у)/10=20/10 |:10

{х+у=8

{х+2у=20

х=8-у

8-у+2у=20

у=12

х=8-12=-4

ответ:(-4;12)