Question

Rezolvati in Z.
2x-5 3x+2≤x
5x+4≤3x+8
5x+5≤3x+17
2(3x+7)≤38
2x+9>3(x+1)

Answer 1

a doua  5x-3x$\leq 8-4$
2x$\leq4$
x\$leq2$
primul 2x-x<5
x<5
al treilea 5x-3x$\leq 12$
2x$\leq 12$
x$\leq6$
al patrulea 3x+7$\leq 19$
3x$\leq 12$
x$\leq 4$
ultimul 2x+9>3x+3
3x-2x<9-3
x<6