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What did Sally do wrong

What did Sally do wrong
asked 90.1k views
1 vote
What did Sally do wrong

What did Sally do wrong-example-1
asked
User AntDC
by
7.7k points

1 Answer

4 votes
she didn't distribute the4 to the 5 as well when she multiplied both sides by 4 in step 2

should result in
n+20=52
minus 20 oth sides
n=32
answered
User Tamica
by
8.6k points
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