Answer:
The two numbers are 10 and 7.
Explanation:
Given:
The two numbers whose difference is three, when the larger number is decreased by three times the smaller number the result is -11.
Now, find the two numbers.
Let the larger number be
.
Let the smaller number be
.
As given, the two numbers whose difference is three:
![x-y=3](https://img.qammunity.org/2020/formulas/mathematics/high-school/zd98iiu5zb97dj3m8cwplgnnqvm2ttdpdp.png)
![x=3+y](https://img.qammunity.org/2020/formulas/mathematics/middle-school/944nulcq1tbkmuerkq0fphafi0n4vk0xem.png)
So, the value of
.
According to question:
![x-3y=-11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/w9rgb48dtk16q4bs0ctg2ba3pfqpsjaj06.png)
Putting the value of
we get:
![3+y-3y=-11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/3co3xen21jr5cg9ainrvvgyn4f74y674ij.png)
![3-2y=-11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/d4j68jb5a1lprrzf140idvh5pii9zspi0f.png)
Moving variables on one side and the number on the other we get:
![3+11=2y](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jmgd2e8afx0iwznlln9xkfdstb0wn0oom6.png)
![14=2y](https://img.qammunity.org/2020/formulas/mathematics/middle-school/9g7jryibx303o6e9tc31qv2hd7rqrempwb.png)
Dividing both sides by 2 we get:
![7=y](https://img.qammunity.org/2020/formulas/mathematics/middle-school/q8fg68u1ebthcc15nxp44wpkwtdug193ig.png)
The smaller number = 7.
Now, putting the value of
in the equation
:
![x-y=3](https://img.qammunity.org/2020/formulas/mathematics/high-school/zd98iiu5zb97dj3m8cwplgnnqvm2ttdpdp.png)
![x-7=3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/o3m0yoeau6si502i2xxlovju1n50ppyuuq.png)
Adding both sides by 7 we get:
![x=10.](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7erkonxksv8h8gaz176eguda0f09je0dwp.png)
The larger number = 10.
Therefore, the two numbers are 10 and 7.