It is known that the absolute value of M (M + 1) multiplied by X + 3 < 0 is an inequality of one degree with respect to x, and the value of M is obtained It is known that | m | + 3 < 0 of (M + 1) multiplied by X is a linear inequality of one variable about X, and the value of M is obtained

It is known that the absolute value of M (M + 1) multiplied by X + 3 < 0 is an inequality of one degree with respect to x, and the value of M is obtained It is known that | m | + 3 < 0 of (M + 1) multiplied by X is a linear inequality of one variable about X, and the value of M is obtained


The | m | + 3 < 0 of (M + 1) times x is a linear inequality of one variable about X
∴|m|=1
And (M + 1) ≠ 0
∴m=1
Similar to the linear equation of one variable about X