Answer:
x = 9
Explanation:
Let the number be x.
7 times the number is 7 times x, or 7x.
The sum of 1 and 7 times a number is 7x + 1.
That sum equals 64, so we set the sum equal to 64, and we solve for x.
7x + 1 = 64
Subtract 1 from both sides.
7x = 63
Divide both sides by 7.
x = 9