Пожалуйста помогите с алгеброй 9 класс неравенства:
а) x+2[tex] \geq [/tex] 1,5x-1
b) 3x + 2 - 2(x-3) > 12
c) 2(x-3) -1 > 3(x-2) - 4(x+1)
d) 2x - 8 > 9 - 3x
а) x+2[tex] \geq [/tex] 1,5x-1
b) 3x + 2 - 2(x-3) > 12
c) 2(x-3) -1 > 3(x-2) - 4(x+1)
d) 2x - 8 > 9 - 3x
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Answers & Comments
-0.5x≥-3
x≥-3/(-0.5)
x≥6
b) 3x+2-2x+6>12
x+8>12
x>4
c) 2x-6-1>3x-6-4x-4
2x-7>-x-10
2x+x>-10+7
3x>-3
x>-1
d) 2x+3x>9+8
5x>17
x>3.4