Answer:
x = - 3 / 2 ( in decimal form = - 1.5)
Step-by-step explanation:
9(x - 1) - 8x = -3(x + 5)
left side: 9(x - 1) - 8x
Expand... 9x - 9 - 8x
= (9x - 8x) - 9
= 1x - 9 or <em>x - 9</em>
right side: -3(x + 5)
Expand... <em>-3x - 15</em>
combine :
x - 9 = -3x - 15
Add 9 to both sides to get x alone
x - 9 + 9 = -3x - 15 + 9
x = -3x - 15 + 9
x = -3x - 6
Add 3x to both sides
x + 3x = -3x - 6 + 3x
simplified, 4x = -6
Now divided 4 from both sides
4x / 4 = -6 / 4
simplify, x = -6 / 4
You can reduce the fraction by dividing it by 2
(-6 / 2) / (4 / 2) = -3 / 2
Hope this helps, Let me know if you have any questions !
Have a nice day :)
Answer:
it's -4
Step-by-step explanation:
I just took the test and got it right
Answer:
(x+1)^2 + (y+1)^2 = 49
Step-by-step explanation:
We can write the equation of a circle as
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center and r is the radius
(x- -1)^2 + (y- -1)^2 = 7^2
Simplifying
(x+1)^2 + (y+1)^2 = 49
Answer:
0.43
Step-by-step explanation:
3.84/8= 0.43
