Answer:
1) f=650 2) a=16 3) d=91
Explanation:
1) To make f=...
We can multiply both sides by 26
f=26×25
f=650
2) To make a=...
We can divide both sides by 5
a=80÷5
a=16 3) To make d=...
We can times both sides by 7 d=13×7
d=91
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