\(130+\frac{x}{3}=136\Leftrightarrow\frac{x}{3}=6\Leftrightarrow x=18\)
\(\frac{\left(x-15\right)}{2}=25\Leftrightarrow x-15=50\Leftrightarrow x=65\)
130+x:3=136
x:3=136-130
x:3=6
x=6.3
x=18
(x-15):2=25
x-15=25.2
x-15=50
x=50+15
x=65
k cho
mình đi
130 + x : 3= 136 (x-15) : 2=136
x:3 = 136-130 X-15 = 136*2
x:3 = 6 X-15 = 272
x = 6*3 x = 272+15
x = 18 x = 287
\(130+x:3=136\)
\(x:3=136-130\)
\(x:3=6\)
\(x=6\times3\)
\(x=18\)
\(\left(x-15\right):2=25\)
\(\left(x-15\right)=25\times2\)
\(x-15=50\)
\(x=50+15\)
\(x=65\)
