x-y-x-y-

Question Number 132119 by Hamid52 last updated on 11/Feb/21

{\begin{cases} x + y = \\ x - y = \end{cases}

Answered by Raxreedoroid last updated on 11/Feb/21

= 3

= 7

= 5

= 8

3 x + 7 x + 5 y - 5 y = 8 + 7

x = 1.5

(4.5) + 5 y = 8

y = \frac{3.5}{5} = \frac{7}{10}

x = \frac{}{}, y = \frac{}{}