12x - 4x = 8 + 3 - 3
8x = 8
X = 1
Answer:
a=1/2
Step-by-step explanation:
first we need to isolate a squared. so we add 1/4 to both sides
then you take the square root of a square to get 1/2
to check, 1/2 * 1/2 = 1/4
1/4-1/4 = 0
Perimeter is 28 and area is 32
Answer:
Step-by-step explanation:
The solution for a system of equations when expressed graphically is coordinate of the point where the two graphs intersect.
Answer:
x = 35
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
Then
1 exterior angle = 360° ÷ 8 = 45° , so
x + 10 = 45 ( subtract 10 from both sides )
x = 35
