\(2x+3=-\left(x+2\right)\)
\(< =>2x+3=-x-2\)
\(< =>2x+x=-2-3\)
\(< =>3x=-5< =>x=-\frac{5}{3}\)
\(2x+3=-\left(x+2\right)\)
\(\Rightarrow2x+3=-x-2\)
\(\Rightarrow2x-\left(-x\right)=-2-3\)
\(\Rightarrow3x=-5\)
\(\Rightarrow x=-\frac{5}{3}\)
2x+3=-(x+2)
2x+3=-x+2
2x+x=-2-3
2x+x=-5
x×(2+1)=-5
x×3=-5
x=-5:3
x=-5/3
vậy x=-5/3
Bài làm
\(2x+3=-\left(x+2\right)\Leftrightarrow2x+3=-x-2\)
\(\Leftrightarrow3x+5=0\Leftrightarrow x=-\frac{5}{3}\)
khong dua cau hoi linh tinh va trai lop vay la sai trai noi quy toi tung hoc lop 1 roi nhung sao khong co bai do hoi chi chi lai noi bai do la cua lop lon