SOLUTION: what is the answer to this: the square root of the sum of a number and 7 is 8. find the number
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Question 139885This question is from textbook Algebra 1
: what is the answer to this: the square root of the sum of a number and 7 is 8. find the number
This question is from textbook Algebra 1
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
what is the answer to this:
Let x = "a number"
:
"the square root of the sum of a number and 7 is 8."
= 8
:
x + 7 = 64; squared both sides
:
x = 64 - 7
:
x = 57
:
:
Check solution:
= 8
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