Question

Aflati x din proportia :

a) x-1/2x+10=1/3

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

Dau coroana !

Answer 1

Răspuns

Explicație pas cu pas:

a)(x-1)/(2x+10)=1/3

3(x-1)=2x+10

3x-3=2x+10

x=13

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

2(x+1)=3x-1

2x+2=3x-1

x=3