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Question:
Where does the line with the equation x – 2y = 4 intersect with the line with the equation 6y + 5x = 4?
A
(2, -1)
explanation
Isolate x in the first equation. x = 2y + 4. Then, substitute into the second equation to find a value for y.
6y + 5(2y + 4) = 4
16y + 20 = 4
y = −1
Finally, use that value of y in the first equation to find a value for x.
x = 2(−1) + 4 = 2
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