Question

2(x+1)+7[mai mare sau egal]1-4(x+2)

2(x-3)-3(2-x0)[mai mic] 20

Answer 1

1.  2x+2 +7 [mai mare sau egal] 1-4x-8
2x+4x [m.m.s.e] 1-8-2-7
6x [m.m.s.e] -16
x [m.m.s.e] -16/6 ( simplifici cu 2)
x [m.m.s.e] -8/3
2.  2x-6-6+3x [m.m] 20
5x-12 [m.m.] 20
5x [m.m] 20+12
5x [m.m] 32
x [m.m.] 32/5 ( lasi asa sau: x[mai mic] 6,4 )