Question

pls repede !!!
help !!!!!!!!!!!

Answer 1

a) (x-2)/5 = 3/2

produsul mezilor cu produsul extremilor:

2(x-2) = 3•5
2x-4 = 15
2x = 15+4
2x = 19
x = 19/2 (5).


b) (2x+1)/3 = 4/5
5(2x+1) = 3•4
10x+5 = 12
10x = 12-5
10x = 6
x = 6/10
x = 3/5
x = 0,6 (la punctul 2 -B ar trebui sa fie 0,6).



c) (x+1)/2 = (x+2)/3
3(x+1) = 2•3
3x+3 = 6
3x = 6-3
3x = 3
x = 3/3
x = 1 (1).


d) (2x+5)/7 = 4
2x+5 = 4•7
2x+5 = 28
2x = 28-5
2x = 23
x = 23/2 (3).




I hope I helped you :)