Răspuns:
1. 6X+12=588
6X=588-12=576
X=576/6
X=96
2. 11-X+29=21
11-X=-8
-X= -19 | *(-1)
X=19
3. 5X+5-4X=3
X+5=3
X=3-5= -2
4. 4X+12+1=25
4X+13=25
4X=12
X=3
5. 8X+2=6X+3+4X
8X+2=10X+3
-2X= -1 |*(-1)
2X=1
[tex]X=\frac{1}{2}[/tex]
II.
a) ...=1-2[tex]\sqrt{2}[/tex]X+2X
b) ...=[tex]x^{2}[/tex]-4XY+4[tex]y^{2}[/tex]
