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Answer
The solution is
and
.
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The Deep Dive
To solve this system of equations, we can use substitution or elimination. First, let’s rearrange the first equation
to express
in terms of
:
- Rearranging gives us:
Now we can substitute this expression for
into the second equation:
-
The second equation is:Substitute
: Simplifying gives: -
Multiplying through by 7 to eliminate the fraction leads to:Thus,
-
Use
to find :
The solution to the system is
.
This solution makes sense since it satisfies both equations. To confirm, plug
back into both original equations:
- For the first equation:
- For the second equation:
Thus, the final answer is
.