2x-15=x+11-(-16)
<=> 2x-15=x+11+16
<=> 2x-15=x+27
<=> 2x-x=27+15
<=> x= 42
\(2x-15=x+11-\left(-16\right)\)
\(\Leftrightarrow\)\(2x-x=15+11+16\)
\(\Rightarrow\)\(x=42\)
Vậy \(x=42\)
2x - 15 = x + 11 + 16
2x - x = 11+16+15
x = 42
2x - 15 = x + 11 + 16
2x - 15 = x + 27
2x - x = 15 + 27
1x = 42
x = 42 : 1
x = 42