Question

Stabiliti multimea solutiilor pentru fiecare ecuatie in parte:
a) 4x+3=x-15;
b) 4x+15=-5;
c) 8x=x+49.
Am nevoie urgent, dau coroana!

Answer 1

a) x = -6

4x + 3 = x - 15
3x = -18
x = -6

b) x = -5/4

4x + 15 = -5
4x = -20
x = -5/4

c) x = 7

8x = x + 49
7x = 49
x = 7