2x^2+5x-3y=-12;
1) 7x +7 <3x
4x < -7
x < -7/4
2) -3x -1 > -8x
5x > 1
x > 0.2
3) -8x +6 > -9x
x > -6
4) 9x -7 > x
8x > -7
x > -7/8
5) 8x-1>4x
4x > 1
x > 0.25
6) -7x-10>-3x
-4x > 10
x < -10/4
7) -3x+6>5x
-8x > -6
x < 6/8
8) -8x -1 > 2x
-6x > 1
x < -1/6
9) -4x-6 <= -7
-4x <= -1
x >= 0.25
Ответ:
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