(-2x-7)-(-5x+18)=35
=>-2x-7+5x-18=35
=>3x-25=35
=>3x=35+25
=>3x=60
=>x=60:3
=>x=20
(-2x-7)-(-5x+18)=35
-2x-7+5x-18=35
(-2x+5x)-(7+18)=35
3x-25=35
3x=35+25
3x=60
x=60:3
x=20
Vậy x=20
\(\left(-2x-7\right)-\left(5x+18\right)=35.\)
\(\Leftrightarrow-2x-7-5x-18=35\)
\(\Leftrightarrow-7x-25=35\)
\(\Rightarrow-7x=60\)
\(\Leftrightarrow x=-\frac{60}{7}\)
Vậy \(x=-\frac{60}{7}\)