\(\sf 6+ \frac{8}{10} x= \frac{9}{10} x\)
Subtract \(\frac{8}{10} x\) from both sides
\(\sf 6+ \frac{8}{10} x - \frac{8}{10} x= \frac{9}{10} x- \frac{8}{10} x\)
Simplify:
\(\sf 6 = \frac{1}{10}x\)
Multiply 10 on both sides:
\(\sf 6 \times 10= \frac{1}{10}x \times 10\)
Simplify
\(\sf 60= x\)
So your answer is x=60. :)
