Answer:
The numbers are 20 and 140
Step-by-step explanation:
<u><em>The question in English is</em></u>
Find 2 numbers knowing that the second number is 7 times greater than the first, and the sum between the double of the first number and the triple of the second is 460
Define the variables
Let
x ----> the first number
y ----> the second number
we know that
-----> equation A
----> equation B
Solve the system of equations by substitution
Substitute equation A in equation B

solve for x



<em>Find the value of y</em>
---->
The numbers are 20 and 140
0.63x12= 7.5 so the answer is 7.5
Answer:

Step-by-step explanation:
We start by adding
to both sides, giving
, which after simplifying gives
.
We then add
to both sides, giving
, which after simplifying gives
.
We can then divide both sides by
, giving
, which after simplifying gives
, or
. So, x is 5.