Question

(3x-2⁴).7³=2.7⁴

Answer 1

\(\left(3x-2^4\right).7^3=2.7^4\)

\(\Leftrightarrow3x-2^4=2.7^4\div7^3\)

\(\Leftrightarrow3x-2^4=2.7\)

\(\Leftrightarrow3x-16=14\)

\(\Leftrightarrow3x=14+16\)

\(\Leftrightarrow3x=30\)

\(\Leftrightarrow x=10\)

Answer 2

\(\left(3x-2^4\right).7^3=2.7^4\)

\(3x-2^4=2.7^4:7^3\)

\(3x-16=14\)

\(3x=30\)

\(x=10\)