Question

Aflati x din proportiile:

Answer 1

Răspuns:

inmultim mezii si extremii

a)  3(x-1)=1*(2x+10)

3x-3=2x+10

3x-2x=10+3

x=13

b)2(x+1)=1(3x-1)

2x+2=3x-1

2x-3x=(-1)-2

-x=-3

x=3

Explicație pas cu pas:

Answer 2

Răspuns:

$3(x-1)=2x+10\\\\3x-3=2x+10\\\\3x-2x=10+3= > x=13\\\\\\2(x+1)=3x-1\\\\2x+2=3x-1\\\\2+1=3x-2x= > x=3$