A variable is a letter, for example x, y or z, that represents an unspecified number.
6 + x = 12
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.
Answer:
-8
Step-by-step explanation:
Following Order of Operations rules, we evaluate anything within parentheses first:
8-[12-(-4)] = 8 - 16 = -8
Answer:
10 inches
Step-by-step explanation:
Given
Shape: Isosceles Triangle
Required
Find the length of the other two sides
Represent the other sides with x.
Since it is an isosceles triangle, 2 sides are equal.
So, we have:
Collect Like Terms
Divide both sides by 2
<em>The other sides are 10in each</em>
Answer:6.6666 I think
Step-by-step explanation:
6x+6x-1-1=82 12x-2=82
82-2=80
80/12=6.6666
