Question

x + 2 x ( x + 1 ) = 119

Answer 1

x + 2 x ( x + 1 ) = 119

x + 2x + 2 = 119

3x = 119 - 2

x = 117 : 3

x = 39

Học tốt nhé~

Answer 2

\(x+2\times(x+1)=119\)

\(\Rightarrow x+2x+2=119\)

\(\Rightarrow3x=119-2\)

\(\Rightarrow3x=117\)

\(\Rightarrow x=117\div3\)

\(\Rightarrow x=39\)

Answer 3

x+2x(x+1)=119

x+2x.x+2x.1=199

x+3x+2x=199

x.(1+3+2)=199

x.6=199

x=199:6=sấp sỉ 33,17

không tin lấy máy thay kết quả thử lại

Answer 4

x + 2.(x + 1) = 119

x + 2x + 2 = 119

3x + 2 = 119

3x = 119 - 2

3x = 117

x = 117 : 3 = 39

Answer 5

\(x+2\cdot\left(x+1\right)=119\)

\(\Rightarrow\text{ }x+2x+2=119\)

\(\Rightarrow\text{ }x\cdot3=119-2\)

\(\Rightarrow\text{ }x\cdot3=117\)

\(\Rightarrow\text{ }x=117\text{ : }3\)

\(\Rightarrow\text{ }x=39\)