By what number should the sum of
(-3/7) and (-9/14)
be multiplied to get 11/21
Answers
Step-by-step explanation:
Let the no be x.
sum of (-3/7) and (-9/14) *x is 11/21,
hence, (-3/7) + (-9/14) *x = 11/21. {LCM for the left hand side is 14}
(-6-9)/14 *x = 11/21.
-15/14 *x = 11/21.
x = (11/21) / (-15/14)
= 11/21 * -14/15
= -154/315.
x = -22/45.
First step to achieve the answer is nothing but simply adding up both the given terms.
(-3/7)+(-9/14)
=
(-6-9)/14
=
-15/14
Second step is also very simple.
Just make a New Folder in your brain computer and choose a name for it. Better be the famous name : X
Now, (-15/14) × X = (11/21)
Just try to understand the logic of the question. That what the question asks from you.
The Final step after which you will defeat this demon is transfer the term (-15/14) beyond the "equals to" sign.
That is,
X = (11/21) × (-14/15)
And the answer is (-22/45)!!!!
Hope it successfully helps you...
Feel free to ask question/doubts if you have...
If you like my explanation then drink a glass of water and hit the Brainliest button.