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OLga [1]
4 years ago
10

Solve each system of linear or non-linear equations. Show all work!! 3x - 4y = 13 2x + y = 5

Mathematics
1 answer:
OLga [1]4 years ago
6 0
Answer: See below

Explanation:

3x - 4y = 13 (1)
2x + y = 5 (2)
——————
3x - 4y = 13
4(2x + y = 5) (2) times 4
——————-
3x - 4y = 13
8x + 4y = 20
——————-
11x = 33
x = 33/11
x = 3

Plug x = 3 in (2):

2(3) + y = 5
6 + y = 5
y = 5-6
y = -1

Thus, x = 3 and y = -1
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