1) 64 + 2 x = 46 + x 2x - x = 46 - 64 x = -18 2)3-x = - 2x -x + 2x = -3 x = -3 3) 4+3x = 2+2x 3x - 2x = 2 - 4 x = -2 4) x + 1/4 = 1/2 + 2x x - 2x = 1/2 - 1/4 -x = 2/4 - 1/4 -x = 1/4 /:(-1) x = -1/4 5) 3x + 1/7 = x - 1 3x - x = -1 - 1/7 2x = -7/7 - 1/7 2x = -8/7 /: 2 x = (-8/7) * (1/2) x = - 8/14 6) 1 cała i 3 /4 - 3x = - 3 całe i 1/4 - 4x -3x + 4x = -3 i 1/4 - 1 i 3/4 x = -13/4 - 7/4 x = -20/4 x = -5 t/10 = 7 /*10 t = 7 * 10 t = 70
64 + 2 x = 46 + x 2x-x=46-64 x=-18 3-x = - 2x -x+2x=3 x=3 4+3x = 2+2x 3x-2x=2-4 x=-2 x + 1/4 = 1/2 + 2x x-2x=1/2 -1/4 -x =-1/4|*(-1) x=1/4 3x + 1/7 = x - 1 3x-x= -1-1/7 2x=-1¹/₇|:2 x=-4/7 1 ¾ - 3x = - 3 ¼ - 4x -3x + 4x=-3 ¼ - 1 ¾ x= - 5 t/10 = 7 0,1t=7|*10 t=70
1) 2x-x=46-64 x=18 2)2x-x=-3 x=-3 3)3x-2x=2-4 x=-2 4)x-2x=1/2-1/4 -x=2 /(*-1) x=-2 5)2x=-8/7 /(/2) x=-4/7 6)7/4 - 3x = 13/4 - 4x x=13/4 - 7/4 x=6/4 x=1 cała i 1/2
