Question

determinati solutia sistemului de ecuatii {x+4/4 + y/6 = 1(3) 3x/5-0,95= 1-y/8, unde x,y e R

Answer 1

Răspuns:

R:-34/3;70

Explicație pas cu pas:

determinati solutia sistemului de ecuatii

x+4/4 + y/6 = 1(3)

3x/5-0,95= 1-y/8

, unde x,y e R

x+y/6=1 3/9-1

3x/5+y/8=0,95+1

⁶x+y/6=4/3-1=(4-3)/3=²1/3

3x/5+y/8=1,95

6x+y=2

y=2-6x

3x/5+(2-6x)/8=195/100=39/20

⁴3x/5+⁵(1-3x)/4=39/20

12x+5-15x=39

-3x=34

x=-34/3

y=2+6×34/3=70