Question

is $k = 2.53$ a solution to this equation?
$4.25 = 6.78 - k$
yes
no

Explanation:

Step1: Substitute k=2.53 into equation

$4.25 = 6.78 - 2.53$

Step2: Calculate right-hand side value

$6.78 - 2.53 = 4.25$

Step3: Compare both sides

$4.25 = 4.25$

Answer:

yes