Solving binary linear equations x + 3Y = m, 5x-3y = m (M is a constant)

Solving binary linear equations x + 3Y = m, 5x-3y = m (M is a constant)

x+3y=m=5x-3y
So 2x = 3Y
Substituting into the first formula x + 2x = m, x = m / 3
So y = 2m / 9

Solving inequality (1) 5x + 2 ≥ 7x + 20 (2) x ≤ 2 + X

（1）5x+2≥7x+20
7x-5x≤2-20
2x≤-18
x≤-9
（2）x≤2+x
There is no solution to this problem. Is it a mistake
Click comment in the upper right corner, and then you can select satisfied, the problem has been solved perfectly

-How to solve linear equation of one variable with 5x = 6-2x

The coefficient is changed to 1-5x = 6-2x-5x + 2x = 6-2x + 2x-3x = 6x = - 2

The distance from point P (a, 2a) to the line 4x-3y + 2 = 0 is equal to 4, and in the inequality 2x + Y-3

The formula of the distance from a = - 9 point P (X &;, Y &;) to the straight line L ∶ ax + by + C = 0 is d = ︱ ax &; + by &; + C / √ (A & # 178; + B &;) so the distance from point P (a, 2a) to the straight line 4x-3y + 2 = 0 is equal to 4, which can be written as ︱ 4a-3 × 2A + 2 / √ [4 & # 178; + (- 3)

Find a point on the line y-2x = 0 so that its distance to the origin is equal to the distance to the line x + 2y-3 = 0

Let the point be (a, 2a) and the equation a ^ 2 + (2a) ^ 2 = [(a + 2a-3) / 5 ^ 0.5] ^ 2
The solution is a = 0.3, so the point is (0.3,0.6)

If a (- 9,12), another point P is on the x-axis and the distance from P to Y-axis is equal to the distance from a to the origin, then the coordinates of point P are______ ．

The distance between ∵ a (- 9,12) and the origin is (− 9) 2 + 122 = 15, the distance between ∵ point a and the origin is 15, and the coordinates of ∵ point P are (15,0) or (- 15,0)

Given that the distance from the intersection point of a function and Y axis to the origin is equal to 3, and is parallel to y = 2x, then the expression of this linear function

If it is parallel to y = 2x, let the linear equation be y = 2x + B
The distance from the point of intersection with y axis to the origin is equal to 3, which means that the point of intersection with y axis is (0,3) or (0, - 3), that is, the intercept is 3 or - 3 respectively
So the linear equation is y = 2x + 3 or y = 2x-3

What is the coordinate of the point on the y-axis whose distance from the origin is equal to 2

There are two: (0, - 2)
（0,2）

If the distance from the point P on the x-axis to the origin is equal to the distance to the point (3,3), then the coordinate of point P is

(3,0)

Given that the point P is on the straight line y = 2x and the distance from the point P to the origin is 5, the coordinates of point P are obtained
It belongs to the unit of Pythagorean theorem,

The coordinates of P are (x, 2x)
The square of X + the flat of (2x) is equal to 25
So it's equal to plus or minus root 5
Just put in P