rozwiaz równanie i zapisz sprawdzenie 4 x + 2 = 8
2)7x-4=4+2
3)-5x + 4 = x - 8
4)-2x-7=2x-7
5}-7x+5=11x +41
6}36x-14=14x-36
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1. 4x + 2 = 8
4x = 6 /:4
x= 3/2
x=
spr. 4*3/2 + 2 = 8
2. 7x - 4 = 4+2
7x =10
x=10/7
spr. 10/7*7 -4 =6
3.-5x + 4 = x - 8
-6x = -12
x= 2
spr. -5 * 2 +4 = 2-8
-6=-6
4)-2x-7=2x-7
-7=-7
5}-7x+5=11x +41
-18x=36
x=-2
spr.19=19
6}36x-14=14x-36
22x=-22
x=-1
spr.-50=-50