Ok, so
We want to find an equivalent expression to
[tex]5(4x+3)-2x[/tex]
For this, we could distribute the terms inside the bracket and multiply them by 5 as follows:
[tex]\begin{gathered} 5(4x+3)-2x\Rightarrow5(4x)+5(3)-2x \\ =20x+15-2x \end{gathered}[/tex]
Now, sum all the similar terms:
[tex]20x+15-2x=18x+15[/tex]
And the correct answer is A.
