# How do you solve 3.7b+7=8.1b-19.4?

$b = 5$
$3.7 b + 7 + 19.4 - 3.7 b = 8.1 b - 19.4 + 19.4 - 3.7 b$
$26.4 = 4.4 b$
$\frac{26.4}{4.4} = \frac{4.4 b}{4.4}$
$5 = b$