Question

Tìm x, biết

x+3=3-(2x+3)

Answer 1

\(x+3=3-\left(2x+3\right)\)

\(x+3=3-2x-3\)

\(x+3=-2x\)

\(x+2x=3\)

\(3x=3\)

\(x=1\)

Answer 2

x+3=3-(2x+3)
x+3=3-2x-3
x+2x=-3
3x=-3 => x=-1

Answer 3

x+3=3-(2x+3)

x+3=3-2x+3

x+2x=-3

3x=-3\(\Rightarrow\)x=-1

Answer 4

mk sửa lại rừ dòng thứ 4 nhé!

\(x+2x=-3\)

\(\Rightarrow x=-1\)

Vậy ..........