Question

am nevoie de rezolvarea succinta care sa includa si solutia a acestor ecuatii:2x-3=-2 7,2:x=3,6 0,47x-0,14x=1,65

Answer 1

2x-3=-2=>2x=-2+3=>2x=1=>x=1/2
7,2:x=3,6=>x=3,6X7,2=>x=25,92
0,47x-0,14x=1,65=>0,33x=1,65=>x=1,65/0,33=>x=5