rozwiąż równania zad 1 2x+7=13 7x+4=3x+20 9x+10=4x+25 zad 2 2x-5=17 4x-9+x=12 5x-12=3x+4 6x-18=2x+2 zad 3 11x+10=2x+37 12x+6=9x+12 10x+16=3x+2 13x+30=21x+14 zad 4 5x-12=4+4x 9x-8=3x+2 10x-4=5x+8 2x-2=-12x+18
rozwiąż równania zad 1 2x+7=13 7x+4=3x+20 9x+10=4x+25 zad 2 2x-5=17 4x-9+x=12 5x-12=3x+4 6x-18=2x+2 zad 3 11x+10=2x+37 12x+6=9x+12 10x+16=3x+2 13x+30=21x+14 zad 4 5x-12=4+4x 9x-8=3x+2 10x-4=5x+8 2x-2=-12x+18