Answer:
Step-by-step explanation:

3) -3x - 3 = 12 ; Multiplication property of equality
4) -3x = 15 ; Addition property of equality
5)x = -5 ; Division property of equality
Answer:
the product of twice is 6
The cost for buying the tent is $230.
65% was increasesd for selling. Then the rate is

The tax is 8%. So this is from the marked price.

Therefore the total cost of the tent is $225.39.
9•44=396
396/54=7.3 repeating
Therefore y=7.33
The product of a number and its multiplicative inverse is 1.