Lets do a simple two step equation
For example,
2x-8=12
Our main goal is to get the X value alone.
In order to do this, We will subtract 8 from both sides.
Our equation will now look like:
2x=20
In order to get the X alone here, We have to divide 2x by 2 in order to cancel out the 2 out. This means that since we divided by 2 on one side, we have to do it on the other.
Our equation now looks like:
x=10
Answer: x = -1
Step-by-step explanation:
i assume you mean
5x-(5x+3) = -1/3(12x+21)
lets start with the left
-(5x+3) can be turnd into -5x-3
now it is
5x-5x-3 and that can be just -3
now lets go to the right and get rid of the 1/3
we see the 3 at the bottom of 1/3, and (12x+21) can be factored with 3
so 1/3 x 3(4x+7) is what we get
1/3 x 3 cancels out so we are left with
-3 = (-4x-7)
lets try to get -4x by itself
if you move -4x to the left, turning it into 4x, and move -3 to the right, turning it into 3, you get 4x = -7 +3
-7 +3 = -4
4x = -4
devide by 4
4x/4 = -4/4
x = -1
Answer:
Relationship between a linear pair and supplementary angles is " If two angles form a linear pair then they are supplementary."
Step-by-step explanation:
Supplementary angles are two angles whose sum is 180°.
Linear pair is a pair of two angles that forms a straight line.
We have to find the relationship between a linear pair and supplementary angles.
Since A linear pair forms a straight line so angle formed at any point on the straight line is 180°, thus forms supplementary angles.
Thus, Relationship between a linear pair and supplementary angles is " If two angles form a linear pair then they are supplementary."
Answer:
Step-by-step explanation:
The base is same power can be add or subtract
Answer:
Step-by-step explanation:
(s/2)^2+h^2=s^2
h^2=s^2-(s^2/4)
h^2=(3s^2)/4
h=(s/2)(3^(1/2)), s=20
h=10(3^(1/2)) simplest radical form 10 times square root of 3
h=17.32 approximate decimal to nearest one hundredth
