a,-2x + 3.
b,3x – 32 > -5x + 1
c,15 + 4x < 2x – 145
d,-3. (2x + 5) -16 < -4. (3 – 2x)
e,-2x + 15 < 3x – 7 < 19 – x
g,x + (x+1) + (x+2) + (x+3) + .... + 13 + 14 = 14
i,25 + 24 + 23 +...+ x + (x - 2) + (x – 3) = 25
Loga
Sinh Học lớp 12
