Question

I need help with this practice It asks to choose one and solve Since I am relatively new to the subject, please explain how to solve it step-by-step as if you were teaching someone who is brand new to the topic

Answer 1

Given:-

$21+x=26$

To find the simplified form.

The first steps is to make the LHS only x. so we substract 21 on both sides. so we get,

$\begin{gathered} 21+x=26 \\ 21+x-21=26-21 \\ x=5 \end{gathered}$

So the required solution is x = 5.