October 2018 1 60 Report
Resolver los siguientes sistemas de ecuaciones lineales por el método de sustitución...

1.
4x - 7y = 5
5x - 7y = 5

2.
4x + 3y - 6 = 0
5x - 2y - 6 = 0

3.
Y= 3x - 5
X - 4y + 2 = 0

4.
4/3x + 1/2y = 2
5/2x + 1/2y = 4

5.
3,2y + x = 2
2,5x - 2,4y = 5

6.
3x + 8y - 16 = 0
-8x + y - 2 = 0

7.
7x + 4 = y
4x - 5 = y

8.
X - 3y - 3 = 0
Y = 2x - 3

9.
-8/3x + 2 + 4/3y = 0
-4x + 7 + 3/5y = 0

10.
8,2y - 1,1x = 2
3,7y + 27x = 1
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