2d-5+5=17+5
2d=22
d=22/2
d=11
Answer:
12x + 15 = 12x - 15
Step-by-step explanation:
-5x - 25 = 5x + 25
-25 = 10x + 25
-50 = 10x
-5 = x
12x + 15 = 12x - 15
15 = -15 ( No solution )
12x + 15 = 3(4x + 5)
12x + 15 = 12x + 15
12x = 12x
0 = 0 ( True for all x's )
7x + 21 = 21
7x = 0
x = 0
Answer:
166.5275
Step-by-step explanation:
i looked it up
The equation is y = 1/8x + 7
Standard form equation is Ax + By = C, where A > = 0.
First eliminate the fractions by multiplying the equation by 8
8y = x + 56
Subtract x from each side
-x + 8y = 56
SInce x coeficient can't be negative multiply the equation by negative one.
<span>x - 8y = -56</span>
Two parallel strings of 12 and 20 cm are drawn in a circle. If the distance
between them it is 4 cm; How big is the diameter?
