Question

1 ) x ori ( 7 pe 4 + 2 intregi 1 pe 2 ) = 1 intreg 3 pe 8 x + 9 pe 2.
2) 3 x - 4 supra 5 = 2 x + 1 supra 3.

Answer 1

1) x *(7/4 +5/2) = 11/8x+9/2
7/4x+5/2x-11/8x=9/2
14x+20x - 11x = 36
13x=36
x=36/13

2) 3x-4/5=2x+1/3
3x-2x=4/5+1/3
x=4/5+1/3
15x=12+5
15x=17
x=17/15