Given:
One of two sisters, if the other one eight books and together they bought 20 books.
Find-:
The equations will lead find the number of books
Explanation-:
Let the one sister bought "x" is,
Together bought is 20 books
If the other one bought 8 books
[tex]x=20-8[/tex]
So, the equation is:
[tex]\begin{gathered} x=20-8 \\ \\ x+8=20 \end{gathered}[/tex]
The equation is x + 8 = 20
