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The standard form for writing a linear equation is:

                        Ax + By = C

               A is positive
               A and B shouldn't be both zero
               A, B, and C should be integers
               The equation is in its simplest form
               The equation is free from fractional coefficients.

                         (4x + 3x) = (2y - 5)
                                  7x = -3y

The standard form is 7x + 3y = 0.