Question

Daca x-1 pe 2=x+1 pe 3 atunci x=.....

Answer 1

Explicație pas cu pas:

x-1/2=x+1/3 <=> 2(x+1)=3(x-1) =>

2x+2=3x-3 => 2+3=3x-2x => x=5

Answer 2

$\frac{x~-~1}{2} = \frac{x~+~1}{3} <=> \it 2(x + 1) = 3(x - 1) <=> 2x + 2 = 3x - 3 <=> 2x - 3x = -3 - 2 <=> -x = -5~ / \cdot(-1) <=> x = 5$