Question

What is the answer to the problem: Solve
(The square root of 2x-7) = 7?

Answer 1

The equation is 
$\sqrt{2x-7}=7\\\text{Elevating to 2 the two sides of the equation we get:}\\2x-7=49\\\text{Therefore:}\\2x=49+7=56\\x=\frac{56}{2}=28\\\text{Solution : }x=28$