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4x+2=5-x ajutatima repede va rog

Răspuns :

4x+2=5-x | +x
4x+ x  + 2 = 5 - x + x
5x + 2 = 5 | -2
5x + 2 - 2 = 5 - 2
5x = 3 |÷5
x = [tex] \frac{3}{5} [/tex]
4x + 2 = 5 - x   |  +x
4x+x +2 = 5+x-x
     5x + 2 = 5   | -2
          5x = 3
            x = 3/5 = 0,6