X/3 = 8/12
12 * x = 8 * 3
12x = 24
x = 2
8/12 = 4/y
8y = 48
y = 6
combining like terms in a polynomial is adding or subtracting together terms that have the same degree in the exponents.
example. 3x^3 + 5x^6 + 2x^3 +7x + 9x^6
= 7x + 5x^3 + 14x^6
Answer:
x = 29
Step-by-step explanation:
I think this because they give you 78 degrees. The angle across from it (3x - 9) must equal 78 degrees as well. So solve as (3x - 9) = 78. 78 + 9 is 87. 87 divided by 3 is 29.
Hope it helps and is correct!
Answer:
Step-by-step excircle
A circle is a plane figure bounded by one curved line, and such that all straight lines drawn from a certain point within it to the bounding line, are equal. The bounding line is called its circumference and the point, its centre.planation:
Answer:
7 girl gifts and 4 boy gifts
Step-by-step explanation:
7 girls gifts = $14
4 boy = $4
total = 18
