Question

Determinati a apartine Z daca urmatoarele ecutii au solutia indicata
a)2ax+3=5;x=-1

Answer 1

$a)2a \times ( - 1) + 3 = 5 = > - 2a + 3 = 5 = > - 2a = 5 - 3 = > - 2a = 2 = > a = - 1$

Answer 2

In poza ai rezolvarea completa. Sper ca am ajutat:)