Question

if the square root of 7x-10 is 12… what is x?

Answer 1

\[\sqrt{7x-10}=12 \] x=?

Answer 2

\(\bf \sqrt{7x-10} = 12\qquad square \ ^2\textit{ both sides}
\\ \quad \\
(\sqrt{7x-10})^2 = (12)^2\implies 7x-10=144\)

Answer 3

then just add 10 to both sides
then
divide by 7 both