Page 88 - MarceAlgebra Demystified

CHAPTER 4 Negative Numbers 75

8: 2:6ð 13:14Þð 6xÞ¼

9: 0:36ð 8:1xÞð 1:6yÞ¼

10: 4ð 7Þð2:1xÞy ¼

Solutions

1: 18ð 3xÞ¼ 54x

2: 4ð2xÞð 9yÞ¼ 72xy

3: 28ð 3xÞ¼ 84x

4: 5xð 7yÞ¼ 35xy

5: 1ð 6Þð 7xÞ¼ 42x

6: 1:1xð2:5yÞ¼ 2:75xy

7: 8:3ð4:62xÞ¼ 38:346x

8: 2:6ð 13:14Þð 6xÞ¼ 204:984x

9: 0:36ð 8:1xÞð 1:6yÞ¼ 4:6656xy

10: 4ð 7Þð2:1xÞy ¼ 58:8xy

Because a negative divided by a positive is negative and a positive divided by
a negative is negative, a negative sign in a fraction can go wherever you want
to put it.
negative positive positive
¼ ¼
positive negative positive

Examples

2 2 2 x x x
¼ ¼ ¼ ¼
3 3 3 4 4 4