\(\left(19x+2\cdot5^2\right):14=9\)
\(\left(19x+50\right):14=9\)
\(19x+50=9\cdot14\)
\(19x+50=126\)
\(19x=126-50\)
\(19x=76\)
\(x=\dfrac{76}{19}=4\)
\(\left(19
.
x+2
.
5^2\right)
:
14=9\)
\(\left(19
.
x+2
.
25\right)
:
14=9\)
\(19
.
x+2
.
25\) \(=126\)
\(19
.
x\) \(=126-2
.
26=76\)
\(x\) \(=76
:
19\)
\(x\) \(=4\)