Question

One more than the difference between 18 and 7 times a number is -9

eight times a number plus 6 less than twice the number is 34

twelve less than the quotient of a number and 8 is -1

i don't think they're supposed to be fractions as going over the others in class didn't and tried checking over my work

Answer 1

The difference between 18 and seven times a number: 18 - 7x

Explanation:

(ii) One more than the difference between 18 and seven times a number:

Add 1 to the expression from step (i) and get

1 + (18 - 7x)

(iii) One more than the difference between 18 and seven times a number is -9:

Set expression from step (ii) equal to -9 and get

1 + (18 - 7x) = -9

You can simplify and solve for x.