\(2x+15+25=50\)
\(2x+40=50\)
\(2x=50-40\)
\(2x=10\)
\(x=10:2\)
\(x=5\)
2x + 15 + 25 = 50
= 15 + 25 = 40
= 50 - 40 = 10
= Chỉ có 10 + 40 = 50 thui
=. đề bài sai !
\(2x+15+25=50\)
\(2x+40=50\)
\(2x=50-40\)
\(2x=10\)
\(x=10:2\)
\(x=5\)
2x+15+25=50
2x + 40 = 50
2x = 50-40
2x = 10
x = 10:2
x = 5
2x + 15 + 25 = 50
2x + 15 = 50 - 25
2x + 15 = 25
x x 2 = 25 - 15
x x 2 = 10
x = 10 : 2
x = 5