Question 711752
a=20+25a
a-25a=20
-24a=20
a=20/-24
a=-5/6 ans.
Proof:
-5/6=20+25(-5/6)
-5/6=20-125/6
-5/6=(6*20-1250/6
-5/6=(120-125)/6
-5/6=-5/6