Question

Why does 3x - 7 = 3x + 5 have no solution?

Answer 1

hi

because it lead to mathematical nonsense

3x-7 = 3x+5

3x-7 -3x-5 = 0

-7-5 = 0

-12 =0

-12 = 0 is just not possible, so 3x-7 = 3x +5 has no solution.