Find n, such that 4/5 and n/27 are equivalent
Answers
Answer:
n=108/5
Step-by-step explanation:
I think this is the ans for ur problem.. Hope it is helpful to u
Answer:
Date: 02/19/98 at 13:20:57
From: Doctor Loni
Subject: Re: Algebra solving equations
Solving equations can be tough when you are first getting started, but
don't despair, you'll get there! Let's see if I can help you along.
In these equations, the letter (like n or w or p or x or y, etc.)
really stands for a number that will make the number sentence true.
The goal is to find out what that number is.
For instance, if you had an equation that said
x + 2 = 5
what it is really asking is "what number when I add 2 to it will give
me 5?" You could probably do that one in your head, because you know
that 3 + 2 = 5, therefore x = 3.
You can't always do it in your head, however, so there are techniques
you can use to find out what number the letter represents. Some
things to remember:
1. The equals sign means just that - whatever is to the left of the
equals sign has the same value as whatever is on the right side of
the equation.
2. You can do whatever you want to an equation - add to it, subtract
from it, multiply it by something, divide it by something, as long
as you do the same thing to both sides! That way it stays equal.
For instance if:
3 + 2 = 5
I can add 2 to both sides of the equation and it will still be true:
3 + 2 + 2 = 5 + 2
7 = 7
3. You want to get the variable (the letter) on one side of the
equation all by itself, because then you will know what it is equal
to. So, for instance in the first problem, you will end up with
n = something and that will be your answer.
Okay, with that as a little background, let's try a few.
n + 39 = 12
We want to get n by itself on one side of the equals sign. Right now
it has a 39 added to it. So to get n by itself we can subtract 39
(from both sides of the equation remember!) and get:
n + 39 - 39 = 12 - 39
If we do the math 39 - 39 = 0 and 12 - 39 = -27 so we get:
n + 0 = -27 or
n = -27