Answer:
x=2.7142 y=-2.8571,
Step-by-step explanation:
given 4x-8y=12............(1)
14+2x=-6y
2x+6y=-14..........(2)
from equ (2) multiply by 2
4x+12y=-28............(3)
substruct (1) and (3)
4x-8y-4x-6y=12-(-28)
-14y=40 ,y=
=-2.8571
y=-2.8571 put in equ (1)
4x-8(-2.8571)=12
4x=12-22.857=10.8571
x=![\frac{10.8571}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B10.8571%7D%7B4%7D)
x=2.7142
That's about 1,531,000 miles. To calculate it, I took the square root of pi and multiplied that by the diameter of the sun.
Answer:
200 or 30
Step-by-step explanation:
what is the mass of each book in grams?
Answer:
it is very long
Step-by-step explanation:
<h3>6 is a solution to equation 6x + 5 = 12 + 5x</h3>
<em><u>Solution:</u></em>
<em><u>Given equation is:</u></em>
6x + 5 = 12 + 5x
Try the numbers 4, 5, 6, 7 in the equation to test whether any of them is a solution
<em><u>Substitute x = 4</u></em>
6(4) + 5 = 12 + 5(4)
24 +5 = 12 + 20
![29 \neq 32](https://tex.z-dn.net/?f=29%20%5Cneq%2032)
Thus 4 is not a solution
<em><u>Substitute x = 5</u></em>
6(5) + 5 = 12 + 5(5)
30 + 5 = 12 + 25
![35\neq 37](https://tex.z-dn.net/?f=35%5Cneq%2037)
Thus 5 is not a solution
<em><u>Substitute x = 6</u></em>
6(6) + 5 = 12 + 5(6)
36 + 5 = 12 + 30
![41\neq 42](https://tex.z-dn.net/?f=41%5Cneq%2042)
Thus 6 is not a solution
<em><u>Substitute x = 7</u></em>
6(7) + 5 = 12 + 5(7)
42 + 5 = 12 + 35
47 = 47
Thus 6 is a solution