Question

Eight times a number minus 11 is 629.
What is the number?

Answer 1

80

Explanation:

Let x be the number

8x-11=629

629+11=640

8x=640

divide each side by 8

x=80

double check:

80*8=640

640-11=629

Answer 2

Explanation:

8x-11=629

8x=629+11

8x=640

x=80