how to solve either by eliminating or including 7 and 56 ? 3/14/2013 | Stephanie from Huntington Park, CA | 0 Answers | 0 Votes Mark favorite Subscribe Comment Comments Did you mean 7 * sqrt(w+9) = 56? If so, first divide both sides by 7: sqrt(w+9) = 8 Now square both sides: w+9 = 64 Subtract 9 from both sides: w = 55 Check: 7 * sqrt(55+9) =? 56 7 * sqrt(64) =? 56 7 * 8 =? 56 56 = 56 √ 1/20/2014 | Steve S. Comment
Did you mean 7 * sqrt(w+9) = 56? If so, first divide both sides by 7: sqrt(w+9) = 8 Now square both sides: w+9 = 64 Subtract 9 from both sides: w = 55 Check: 7 * sqrt(55+9) =? 56 7 * sqrt(64) =? 56 7 * 8 =? 56 56 = 56 √ 1/20/2014 | Steve S.
Comments
Did you mean 7 * sqrt(w+9) = 56?
If so, first divide both sides by 7:
sqrt(w+9) = 8
Now square both sides:
w+9 = 64
Subtract 9 from both sides:
w = 55
Check:
7 * sqrt(55+9) =? 56
7 * sqrt(64) =? 56
7 * 8 =? 56
56 = 56 √