2+3x=-15-19
2 + 3x= -34
3x = -34:2
3x=-17
x= -17:3
x= -17/3
Vậy...
2+3x = -34
3x= -34-2
3x = -36
x= -36:3
x= -12
Vậy...
\(2+3x=-15-19\)
\(2+3x=-34\)
\(3x=-36\)
\(x=-12\)
\(2+3x=-15-\)\(19\)
\(\Leftrightarrow2+3x=-34\)
\(\Leftrightarrow3x=-36\)
\(\Leftrightarrow x=-12\)
\(2+3x=-15-19\)
\(\Leftrightarrow2+3x=-34\)
\(\Leftrightarrow3x=-34-2=-17\)
\(\Leftrightarrow x=-17:3\)
\(\Leftrightarrow x=\frac{-17}{3}\)
Chúc bạn học tốt~~~
2+3x=-15-19
2+3x=-34
3x=-34-2
3x=-36
x=-36:3
x=-12
Vậy x=-12