Solution equation: 2 (X-2) - 3 (4x-1) = 9 (1-x)

Solution equation: 2 (X-2) - 3 (4x-1) = 9 (1-x)

Remove brackets: 2x-4-12x + 3 = 9-9x, shift: 2x-12x + 9x = 9 + 4-3, merge similar terms: - x = 10, coefficient 1: x = - 10

How to solve the equation of 3 / 4x + (45-1 / 6x) = 25

3/4x+（45-1/6x)=25
3/4x+45-1/6x=25
3/4x-1/6x+45=25
9/12x-2/12x+45=25
7/12x+45=25
7/12x=25-45
7/12x=-20
x≈-17

2. When m is a value, the solutions of the equations (M + 1) x + my = m + 1; 4x-y = 2 satisfy that x is less than or equal to 11 / 15 and Y is greater than or equal to 2 / 3

The answer is 0.4 ≤ m ≤ 1