Solve the equation
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Solve the equation
We have an equation with a variable.
Usually, in these equations, we will be asked to find the value of the missing (X),
This is how we solve it:
To solve the exercise, first we have to change the mixed fractions to an improper fraction,
So that it will then be easier for us to solve them.
Let's start with the four and the third:
To convert a mixed fraction, we start by multiplying the whole number by the denominator
4*3=12
Now we add this to the existing numerator.
12+1=13
And we find that the first fraction is 13/3
Let's continue with the second fraction and do the same in it:
21*3=63
63+2=65
The second fraction is 65/3
We replace the new fractions we found in the equation:
13/3x = 65/3
At this point, we will notice that all the fractions in the exercise share the same denominator, 3.
Therefore, we can multiply the entire equation by 3.
13x=65
Now we want to isolate the unknown, the x.
Therefore, we divide both sides of the equation by the unknown coefficient -
13.
63:13=5
x=5
Solve for X:
\( x - 3 + 5 = 8 - 2 \)
Mixed numbers make calculations much more complicated! Converting to improper fractions like makes multiplication and division straightforward.
Use this formula: whole × denominator + numerator. For : 4×3+1=13, so it becomes .
Absolutely! Since both fractions have denominator 3, multiplying both sides by 3 gives you 13x = 65, which is much easier to solve.
Go back and check your conversion step. The most common error is calculating whole×denominator+numerator incorrectly when converting mixed numbers.
Not necessarily! Since the answer x=5 is a whole number, it's already in its simplest form. Mixed number conversion is mainly needed for fractional answers.
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