Question

is $u = 0.05$ a solution to this equation?
$7.8u = 0.71$
yes
no

Explanation:

Step1: Substitute u=0.05 into left side

$7.8 \times 0.05 = 0.39$

Step2: Compare to right side value

Right side = $0.71$, $0.39
eq 0.71$

Answer:

no