4x - 3x = 5-3 x = 2 5x+3x= 7-2 2x = 5/2 x = 2.5 3(x-1)=0 3x - 3=0 3x= 0 +3 3X = 3/ 3 X = 1 -6(x+1)=24 -6X -6 = 24 -6X = 30 / -6 X = -5 -7(x-2)=3x-1 -7X + 14 = 3X - 1 -9X = -14 - 1 -9X = -15 / -9 X= -15/-9
a) 4x-3= 3x+5 4x-3x=5+3 x=8 b) 5x+2= 7-3x 5x+3x=7-2 8x=5 x=5/8 c) 3(x-1)=0 3x-3=0 3x=3 x=1 d)-6(x+1)=24 -6x-6=24 -6x=24+6 -6x=30 x=30/-6 x=-5 e) -7(x-2)=3x-1 -7x+14-3x=-1 -10x=-1-14 -10x=-15 x=15/10 x=1 i 5/10=1 i 1/2 f) 4(x-1)= 6(1+x) 4x-4=6+6x 4x-6x=6+4 -2x=10 x=10/-2 x=-5 pozdrawiam:)
a)4x-3=3x+5 4x-3x=5+3 x=8 b)5x+2=7-3x 5x+3x=7-2 8x=5/podzielić na 8 x=0.625 c)3(x-1)=0 3x-3=0 3x=0+3 3x=3/podzielić na 3 x=1 d)-6(x+1)=24 -6x-(-6)=24 -6x=24-6 -6x=18/podzielić na -6 x=3 e)-7(x-2)=3x-1 -7x-14=3x-1 -7x-3x=-1+14 -10x=13/podzielić na -10 x=-1.3 f)4(x-1)=6(1+x) 4x-4=6+6x 4x-6x=6+4 -2x=10/podzielić na -2 x=-5