If you were to make both x's equivalent, you'd have to multiply the first equation by 2 to get rid of the coefficient, 1/2. However, you'd have to multiply 2 onto -8 as well, therefore the equation would turn into x - 16 = 18. That is not equivalent to x - 8 = 18.
It was reduced because as you can see on the scale the actual picture has larger spaces between the numbers.
Answer:
the connection is at 4 on x axis and 5 on y axis, so the solutions are x=4; y=5
4. is 46
8. is 438 dimes
9. is 3.099, 3.289, 3.644, 3.9
10. is .4868
You would divide 198 by 9.
198÷9=22
Each person would clean 22 rooms.