1/7х+3/14х =14 1/7+3/14= 2/14+3/14=5/14
5/14x=14 14:5/14=14*14/5=39,2
x=14: 5/14
<span>x=39,2</span>
X^2 - (6 - 2<span>√2)</span>x + 13 - 6√2 = 0
Вроде так
решите уравнения:1) (13,4-у)*4,3-20,05=78,05+6,7у2) (16,2-х)*3,2-50,08= -8,12-5,1
gisabekal
<span>13,4*4,3-4,3у-6,7у=78,05+20,05 </span>
<span>57,62-78,05-20,05=4,3у+6,7у </span>
<span>-40,48=11у </span>
<span>у=-3,68</span>
Y=kx+b,
k=3, т.к. <span>⟂ 3x+y=0, y=-3x;
{x-5y+10=0,
{x+2y-3=0;
-7y+13=0,
y=13/7,
7x+5=0,
x=-5/7;
13/7=-5/7*3+b,
b=4,
y=3x+4,
3x-y+4=0.</span>