If the system of inequalities about X {x > a x}

If the system of inequalities about X {x > a x}

That is a

Is there such a rational number m such that the inequality 2mx + 4 about X exists

2mx+4＜7+3x
2mx-3x＜7-4
(2m-3)x＜3
Let the solution set be x < 1
Then 2m-3 = 3
And 2m-3 > 0
The solution is m = 3
I hope I can help you. Happy study

Given that t is a rational number, X and y satisfy {x = 3 + T ^ 2, y = 3-T ^ 2, find the inequality 3x-2y

=3+t² (1)
y=3-t² (2)
From (1), it is concluded that:
T & # 178; = x-3 substituting (2)
y=3-(x-3)
y=-x+6

If the system of inequalities (x + A is greater than or equal to 0, X is less than 1) has a solution, find the value range of a?

x+a≥0,x≥-a
x＜1
Because the system of inequalities has solutions, that is, two inequalities have common parts
So: - a ≤ x < 1
That is: - a < 1
a＞-1