Question

help to solve this equation​

Answer 1

Step-by-step explanation:

x+3x/9=1/9

x+3x=1/9*9=1

x+x=1/3

2x=1/3

x=1/6

Answer 2

Answer: 1/4

Step-by-step explanation:

While adding fractions, you have to check whether the denominators are equal. If not you have to find the L.C.M. of both numbers.

L.C.M. of  3 and 9 is 9.

So we want to change 3 into 9.

To change 3 as 9, we have to multiply 3 by 3. (To change we can only use multiplication or division)

NOTE: Whatever changes you make to denominator it should also be done to the numerator.

So,

$\frac{x *3} {3*3}$

$=\frac{3x}{9}$

So, now both denominators are equal

$\frac{x}{9} + \frac{3x}{9}$

Now you can add the values in the numerator.

$\frac{4x}{9} =\frac{1}{9}$

Now you can solve this equation using elimination method.

The order you have to eliminate numbers is(+ or - , ÷, x)

So, first we have to eliminate division 9. To remove division 9 we have to insert its additive inverse. (Multiplication 9)

$\frac{4x}{9}$x 9 = $\frac{1}{9}$ x 9

NOTE:Whatever changes we make in one side of the equation, we have to do the same in the other side of teh equal sign.

We can simplify diagonally. Numerator and denominator.

9/9 = 1

So,

4x = 1

To eliminate Multiplication 4 we have to insert its additive inverse. (/4)

$\frac{4x}{4}$ = $\frac{1}{4}$

$x = \frac{1}{4}$

Hope that it was understandable.

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