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sesenic [268]
3 years ago
7

What is the solution to this system of equations? 3x + 2y=45 , 4x-y=5

Mathematics
1 answer:
sleet_krkn [62]3 years ago
3 0
The solution is (5, 15)

Multiply the second equation by 2 and then add through. 

3x + 2y = 45
8x - 2y = 10
-----------------
11x = 55
x = 5

Then plug in to get the y value

3(5) + 2y = 45
15 + 2y = 45
2y = 30
y = 15
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