When solving the equation 10-4-x = 1-3-x-m to remove the denominator, a student forgot to multiply 1 by 12, and the result = - 1 Find the right solution

When solving the equation 10-4-x = 1-3-x-m to remove the denominator, a student forgot to multiply 1 by 12, and the result = - 1 Find the right solution

For the equation: (10 - x) / 4 = 1 - (x - M) / 3, according to the meaning of the problem: the student's solution is to remove the denominator (10 - x) / 4 × 12 = 1 - (x - M) / 3 × 12, then 3 (10 - x) = 1 - 4 (x - M) 30 - 3x = 1 - 4x + 4mx = 1 + 4m - 30