October 2018 2 10 Report

Zadanie z matematyki, wgl mi to nie wchodzi:

Równania to są z 1gim.

1) 10x-20=4x-20

2) 7-2x=5x-20

3) 8x-5=9x-5

4) x+2x+3x=5+6+7

5) 4x+2+5x-3=6x-4-7x+5


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