Question

$d - 23.6 = 24.9 \\ a.d = 47.5 \\ b.d = 48.5 \\ c.d = 1.3 \\ d.d = 2.3$

Answer 1

$d-23.6=24.9\qquad\text{add 23.6 to both sides}\\\\d+23.6-23.6=24.9+23.6\\\\\boxed{d=48.5}\to\boxed{b.}$

Answer 2

Hello there! :)

Step-by-step explanation:

Solving One-Step Equations: Addition and Subtraction.

Addition property of equality is adding the same number to both sides of an equation does not change the equation.

$a+c=b+c$

First, you add by 23.6 from both sides of an equation.

$d-23.6+23.6=24.9+23.6$

And then solve or simplify.

$24.9+23.6=48.5$

Answer: → $\boxed{d=48.5}$ and $\boxed{B.}$

Hope this helps!

Thanks!

-Charlie

:)