How do you solve the system of equations #4x - y = 6# and #4x + 5y = - 6#?
1 Answer
Dec 30, 2016
Explanation:
Eliminate one variable in order to determine the value of the other. Then determine the value of the eliminated variable using the original equations
Scale one of the equations (or both) such that the coefficient of one of the variables will be equal.
In this case, the coefficient of
Subtract equations [1] and [2]
<pre>
4x - y = 6
- (4x + 5y = -6)
0x - 6y = 12
</pre>
Using equation [1], get the value of