Answer:
[tex]s+80=\dfrac{1}{8}s[/tex]
Step-by-step explanation:
Let s represents the total Israel's savings.
Israel added $80 to his savings. Hence, he then had $(s+80).
This added amount represents [tex]\frac{1}{8}[/tex] of his total savings. [tex]\frac{1}{8}[/tex] of his total savings is
[tex]\dfrac{1}{8}s[/tex]
Therefore,
[tex]s+80=\dfrac{1}{8}s[/tex]