\(5.x-3.x+69=285\)
\(x.\left(5-3\right)+69=285\)
\(x.2+69=285\)
\(x.2=285-69\)
\(x.2=216\)
\(x=216:2\)
\(x=108\)
5x - 3x + 69 = 285
<=> 2x + 69 = 285
<=> 2x = 216
<=> x = 108
\(5\cdot x-3\cdot x+69=285\)
\(5\cdot x-3\cdot x=285-69\)
\(5\cdot x-3\cdot x=216\)
\(\left(5-3\right)\cdot x=216\)
\(2\cdot x=216\)
\(x=216:2\)
\(x=108\)
\(5\times x-3\times x+69=285\)
\(\Rightarrow\left(5-3\right)\times x+69=285\)
\(\Rightarrow2\times x+69=285\)
\(\Rightarrow2\times x=285-69\)
\(\Rightarrow2\times x=216\)
\(\Rightarrow x=216:2\)
\(\Rightarrow108\)
Học tốt #
\(5\cdot x-3\cdot x+69=285\)
\(\left(5-3\right)\cdot x+69=285\)
\(2\cdot x+69=285\)
\(2\cdot x=285-69\)
\(2\cdot x=216\)
\(x=216\text{ : }2\)
\(x=108\)
5x - 3x + 69 = 285
=> 2x + 69 = 285
=> 2x = 285 - 69
=> 2x = 216
=> x = 216 : 2
=> x = 108
Vậy x = 108
\(5.x-3.x+69=285\)
\(2x+69=285\)
\(2x=285-69\)
\(2x=216\)
\(x=216:2\)
\(x=108\)
Vậy \(x=108\)
\(5\text{}\times x-3\text{}\times x+69=285\)
\(\Rightarrow\left(5-3\right)\text{}\times x=285-69\)
\(\Rightarrow2\text{}\times x=216\)
\(\Rightarrow x=216:2\)
\(\Rightarrow x=108\)
Vậy x = 108
_Chúc bạn học tốt_
Trả lời:
\(5x-3x+69=285\)
\(\Leftrightarrow\) \(2x+69=285\)
\(\Leftrightarrow\) \(2x=285-69\)
\(\Leftrightarrow\) \(2x=216\)
\(\Leftrightarrow\) \(x=108\)
~ học tốt ~
