The diameter of the eye of a certain hurricane was 86 miles. The radius is represented by 7 x plus 8. Write an equation to find the value of x. Find the value of x.
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Part 1
Which equation can you use to find the value of x?
A.7 x minus 8 equals 86
7 x minus 8 equals 86
B.7 x plus 8 equals 43
7 x plus 8 equals 43
C.7 x plus 8 equals 86
7 x plus 8 equals 86
C. 7x + 8 = 86
Part 2
7x + 8 = 86
Subtract 8 from both sides:
7x = 78
Divide by 7:
x = 11
Therefore, the value of x is 11.