(2x-7)(x-1)=0
Let's solve in ℝ: (2x -7)·(x -1) = 0
Let's solve in ℝ: 2x -7 = 0
2x = 7
Solution obtained: x = 72
Let's solve in ℝ: x -1 = 0
Solution found: x = 1
▶Solution:   x = { 1, 72 }
The numeric value of: x = { 1, 72 } equals:
▷ x = { 1, 3.5 }