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Mathematics-the relationship between roots and coefficients of common equations and linear equations with one variable.
1, the common one-dimensional linear equation is:

Ax = b, where a and b are constants.

2. Solution:

When a≠0, the equation has a unique solution:

x=b/a

When a = 0, b is not equal to zero.

The original equation is: 0x = b,

Because zero times any number is zero.

So the original equation has no solution.

When a = 0 and b = 0, the original equation is:

0x=0,

No matter what x is, this equation holds.

So the solutions of the equations are all real numbers.

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