The answer is x=-6.33333 (-19/3)
First, add like terms (12+7), which would equal to 19.
Then isolate the variable by subtracting 19 and adding it to the other side of the equal sign.
Now with this new equation of 3x=-19, isolate again by dividing 3 from x and do the same thing to the other side (-19/3).
The answer should be -6.33 repeating, but in algebra you would give a more simplified answer. This would be -19/3
Answer: The perimeter is 10.1415925, which you can round down to 10, or leave it as is.
Step-by-step explanation:
4 is the common difference
1 ounce = 28.3495 grams
13 x 28.3495 = 368.544 grams
round answer as needed
