Answer: 7
7 is the middle number when the number are out from least to greatest. Hope that helps!!
Answer:
x = 13
Step-by-step explanation:
Sum or interior angles of a triangle is 180,
6x + 19 + 5x - 15 + 3x - 6 = 180
6x + 5x + 3x + 19 - 15 - 6 = 180
14x + 19 - 21 = 180
14x - 2 = 180
14x = 180 + 2
14x = 182
x = 182 / 14
x = 13
Answer:
the answer is 4, just kidding it's 2
Step-by-step explanation:

You need to use the equation for adding fractions, which is

In this case, a=-1, b=3, c=-3, d=5.

simplify
answer: