Question

X+Y+W=24
W+Y=3X
3(W-Y)=8X
Sa se afle cele trei necunoscute X,Y,W.​

Answer 1

W+Y=3X <=> 24-X=3X <=> 4X=24 => X=6;

3(W-Y)=48 => W-Y = 16;

W+Y=18;

W-Y=16

daca adunam ecuatiile => 2W=34 => W=17;

W+Y=18 => Y=18-17 => Y=1;

sper ca te-am ajutat. coroana?

Answer 2

Explicație pas cu pas:

X+Y+W=24

W+Y=3X

3(W-Y)=8X

înlocuim:W+Y+X=24

3X+X=24

4X=24

X=24/4

X=6

W+Y=6.3=18

3(W-Y)=8X

3W-3Y=8.6

3W-3Y=48

W-Y=48/3

W-Y=16=>W=Y+16

Y+Y+16+6=24

2Y+22=24

2Y=24-22

2Y=2

Y=2/2

Y=1

W=1+16

W=17

V:1+17+6=18+6=24

V:W+Y=17+1=3x=3.6=18

3(17-1)=8x=>3.16=6.8=>48=48

Sper că te-am ajutat!