Rozwiąż równania: a)10= 4 - 2x b) -(2x-1) = 4 c) 2(x + 1 ) = x d) 2t - (3t + 1 ) = 6 e) -(4 + x) = 2(3 -x) f) 3(y+6) - y = 2( y + 9 ) i) (x-7) - 2(3x+ 5 ) = 3 ile umiecie najwięcej daje naj

a)2x=4-10 2x=-6|:2 x=-3 b)-2x+1=4 -2x=4-1 -2x=3|:(-2) x=- 1 1/2 x=-1,5 c)2x+2=x 2x-x=-2 x=-2 d)2t-3t-1=6 2t-3t=6+1 -t=5|:(-1) t=-5

a) 10 = 4 - 2x -2x = 10 - 4 -2x = -6 x = 3 b) -(2x - 1) = 4 -2x + 1 = 4 -2x = 4 - 1 -2x = 3 x = -1½ c) 2(x + 1) = x 2x + 2 = x x = -2 d) 2t - (3t + 1) = 6 2t - 3t - 1 = 6 -t = 6 -1 -t = 5 t = -5 e) -(4 + x) = 2(3 - x) -4 - x = 6 - 2x -x + 2x = 6 + 4 x = 10 f) 3(y + 6) - y = 2(y + 9) 3y + 18 - y = 2y + 18 2y = 2y 0 = 0 i) (x - 7) - 2(3x + 5) = 3 x - 7 - 6x - 10 = 3 -5x = 3 + 17 -5x = 20 x = -4

b)-2x+1=4 -2x=4-1 -2x=3/:(-2) x= -1,5 c)2x+2=x 2x-x=-2 x=-2 d)2t-3t-1=6 -t=6+1 -t=7/:(-1) t=-7 e)-4-x=6-2x -x+2x=6+4 x=10 f)3y+18-y=2y+18 3y+18y-2y=18 19y=18/:19 y=18/19 CHYBA