Question

solve.
4/7 = x-3 over 21

Answer 1

try to get all x to one side and all numbers to other side

Answer 2

\[\frac{4}{7} = \frac{x-3}{21}\]
\[\frac{4}{1} = \frac{x-3}{3}\]
\[{4}\times{3} = {x-3}\]
\[{12} = {x-3}\]
\[{12+3} = {x-3+3}\]
\[{15} = {x}\]