October 2018 1 53 Report
Resolver por sustitución
b) 3x + y = 1
x - 2y = 5

c) 2x + y = 7
3x - 2y = 0

Resolver por igualación:
a) 4x + y = 3
-2x + y = 0

b) x + 5y = 5
x - 2y = -1

c) 2x + 3y = 1
x + 2y = -1

Resolver por reducción :

a) 3x + 2y = -1
4x - 2y = 8

b) 5x - 4y = -9
3x + 2y = -1

c) 3x + y = -1
9x + 2y = -1




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