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2x-x = 5+3
x = 8
spr. 2*8-3 = 5+8
16-3 = 13
13 = 13
2(x-6) = 4x
2x-12 = 4x
2x-4x = 12
-2x = 12 /:(-2)
x = -6
spr. 2(-6-6) = 4*(-6)
-12-12 = -24
-24 = -24
3/5x+1 = 2
3/5x = 1 /:3/5
x = 5/3
możesz wyłączyc sobie całosci;)
spr. 3/5*5/3+1 = 2
1+1 = 2
2 =2
5) 3x = x+3
3x-x = 3
2x = 3 /:2
x = 1.5
spr. 3*1.5 = 1.5+3
4.5 = 4.5
;)