Question

2) rezolvati ecuatiile: a) 3x-2≤13
2-3x<3-x
4(x-1)+3≥11
5-3(x+1)>2x-6

Answer 1

x-2≤13
x ≤ 13+2
x ≤ 15 

2-3x<3-x
2-3<-x+3x
-1<2x

4(x-1)+3≥11
4x-4 + 3 ≥11
4x -1≥11
4x ≥ 11 + 1
4x ≥ 12   l : 4
x ≥ 3

5-3(x+1)>2x-6
5-3x-3>2x-6
2-3x >2x-6
2+6 >2x+3x
8>5x

Answer 2

3x <= 13+2

X<= 15:3= 5

B)
2-3x < 3-x
X-3x < 3-2

-2x < 1
-1 < 2x

C))

4(x-1) >= 11-3

4(x-1)>=8
X-1 > = 8:4= 2

X>= 3

D))

5-3x-3 > 2x-6

2-3x > 2x -6

8 > 5x