5x+8=11+5x+6
Let's solve in ℝ: 5x + 8 = 11 + 5x + 6
ⓘ Start from 11 and move forward 6 on the number line: 11 + 6 = 17
5x + 8 = 17 + 5x
ⓘ We subtract 8 from both sides■Start from 17 and move back 8 on the number line: 17 -8 = 9
5x = 9 + 5x
ⓘ We subtract 5x from both sides
5x -5x = 9
ⓘ Like terms are grouped by adding their coefficients: 5x -5x = 0
0 = 9
The statement -9 = 0 is false, whatever the value of x
▶Solution: x ∈ ∅