5x+5x+100=150
5x+5x=50
5x.2=50
5x=25
5x=52
x=2
k mình nha
5x + 5x + 100 = 150
5x + 5x = 150 - 100 = 50
2.5x = 50
5x = 25 = 52
=> x = 2
5x + 5x + 100 = 150
5x + 5x = 150 - 100
5x + 5x = 50
5x phải bằng 25 vì 25 + 25 = 50
\(\Rightarrow\)x = 2
\(5^x+5^x+100=150\)
\(5^x+5^x=150-100\)
\(2\times5^x=50\)
\(5^x=50:2\)
\(5^x=25\)
\(5^x=5^2\)
\(\Rightarrow x=2\)
Vậy \(x=2\)
5x+5x+100=150
5x+5x =150-100
5x+5x =50
=> 5x.2=50
5x = 50:2
5x = 25
5x = 52
=> x = 2
5x + 5x + 100 = 150
5x.2 = 150 - 100
5x.2 = 50
5x = 50 : 2
5x = 25
5x = 52
\(\Rightarrow\)x = 2