October 2018 2 46 Report

1. 2x-5 = 15

2. 12 - 5x = 2

3. 1+3x = 5x - 7

4. 2(1-x) - 2(x-5) = x

5. -2(3x+4) - 4(x -6) = -10x

6. x-1 = x+1

--- ----

2 3

7. x-1 - x+1 = 1

---- ----- ---

5 10 2

8. 3(y+6) + y = 2(y+9) + 2

9. Zamiast ? wpisz liczbę lub wyrażenie any równanie

5x + ? = 2x było:

a) sprzeczne

b) tożsamosciowe


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