To do linear equations, basically, just imagine it with an equals sign. It is pretty much the same as normal algebra, so it's not too confusing.
An example of a linear equation is 3x - 7 = 11
with this, your objective is to get 'x' on its own and to do this, do inverse operations (the opposite to what is actually done)
For instance, to get '3x' on its own, you must add 7.
So do this for both sides to give you
3x = 18
Yeah?
Now you must get 'x' on its own. It currently has 3 x's at the moment, so you must divide it by 3 to give you one 'x'. A rule with these - what you do to one side you must do to the other.
So this means that if you divide 3x by 3, you must divide 18 by 3.
This leaves you with x = 6.
Answer and Step-by-step explanation:
If you see a number or fraction or anything we g beside it, such as:
4.2g
6g
^ That is grams
If you see anything with kg next to a number, fraction, e.t.c, such as
5kg
6.2kg
^ That is kilograms
a.
This is the geometric sequence: a1 = 1.5 m = 150
cm, r = 0.74
The formula now is an = a1 x r ^ n-1
Just substitute a1 = 150 cm and r = 0.74
an = 150 x (0.74) ^ n – 1
b.
The second part is:
A6 = 150 x 0.74 ^ 6-1
= 150 x 0.74 ^5
= 150 x 0.221906624
= 33.28509936 cm
Add 4x over to 14x, 3=5x2- 18x then add 18x to the other side 3+ 18x= 5x2then divided each side by 5,( 3+18x/5=x2) then square root each side the answer to x would be the square root of 3+18x/5
Answer:
5 + 2
Step-by-step explanation:
We have to rewrite the given statement in addition form.
The integers have property of:
Negative(-) Negative(-) = Positive(+)
Positive(+) Positive(+) = Positive(+)
Positive(+) Negative(-) = Negative(-)
Negative(-) Positive(+) = Negative(-)
The given statement is:
5-(-2)
Since we have two negative together, it is converted into a positive.
Thus, the given statement can be written in positive form as
5 + 2
