6x - 17 = 7 ........ added 1x to both sides
6x = 24 ............. added 17 to both sides
x = 4 ................. divided by 6 on both sides
so x=4
Answer:
(x - 5)(y + 6)
Step-by-step explanation:
Hello!
Let's see. Over here we have two sides of an equation with blank space on the right-hand side. It seems that the topic of the question is factoring.
On the left-hand side, we see that 1 factor is common between two other factors (x and -5). To simplify, we can simply add the two values.
x(y + 6) - 5(y - 6) would be the same as (x-5)(y-6) => your answer
We can check if our equation is true.
x( y + 6) - 5(y + 6) = (x-5)(y + 6)
xy + 6x - 5y -30 = xy - 5y + 6x - 30
xy + 6x - 5y - 30 = xy + 6 - 5y - 30
Both equations are the same
Answer:
m∠1 = 81
m∠2 = 99
Step-by-step explanation:
The angles are supplemaentary and therefor sum to 180
3x + (x + 72) = 180
4x + 72 = 180
4x = 108
x = 27
m∠1 = 3x
m∠1 = 27(3)
m∠1 = 81
m∠2 = x + 72
m∠2 = 27 + 72
m∠2 = 99
So given a rectangle
sides are
_<u>x</u>_
x-5|__|x-5
x
the perimeter is 90 inches
perimeter is
x + x + (x-5) + (x-5) = 90
combine like terms
2x + 2(x-5) = 90
distribute
2x + 2x-10 = 90
combine like terms
4x - 10 = 90
add 10 to both sides
4x= 100
divide both sides by 4
x = 25
now to find the length of a side
x is 25
and x-5 is 20
to check and see if that's right:
25 + 25 + 20 + 20 =?= 90
50 + 40 =?=
90 = 90
Now to find the area
A = b * h
so
x * (x-5)
substitute
25* 20
500
The area of the rectangle is 500
Hope this helps :)
<span>x=y^2+6y+1 what is the vertex form of the equation?
x=(y+3)^2 -8 hope this helped</span>