September 2018 2 22 Report

1. ROZWIĄŻ UKŁADY RÓWNAŃ !

A) u = 4v

5u - v = 10

2.ROZWIĄŻ UKŁADY RÓWNAĆ METODĄ PODTSAWIANIA

A) x + 3y =3

x - y = 5

B) 2x - y = 10

x + 5 y = -17

C) 3 m + n = 9

2m - 5 n = -11

D) 4a - 2 = b

3a + 7b = 1,5

E) 5x = 4 -2 y

4x + y =3

F) 6x - 3x = 9

x + 5y = - 9,5


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