Question

(15+x)/=20 find x

Answer 1

alright, we have :\[x + 15 = 20 \rightarrow x = 20-15 \rightarrow x = 5\]

if that was the question, ^_^

Answer 2

oh, there was a typo with the question right?

Answer 3

\[\frac{15+x}{5} = 20 \rightarrow 15 + x = (20)(5)\]\[x = 100 - 15\]
\[x = 85\]

^_^