a) x=8 1/3 - 15 x= -3 2/3 b) -x=20 - 12,4 -x=7, 6 /:(-1) x= -7,6 c) 2x=15 3/4 - 5 2x= 10 3/4 /:2 x= 5, ... dalej nie umiem.. niezbyt umiem równania.. wiec nie pomoge wiecej..
a)x+15=8⅓ x = 8 i 1/3 - 15 x= - 6 i 2/3 b)12,4-x=20 - x = 20 - 12,4 x = -7,6 c)2x+5=15³/₄ 2x = 15 3/4 - 5 2x = 10 3/4 | 2 x = 43 / 4 * 1/2 x = 43/8 x= 5 3/8 d)-3x=3³/₄ | -3 x = 3 3/4 * (- 1/3) x = 15/4 * (- 1/3) x = - 5/4 x = - 1 i 1/4 e)2(3x-4)=10 6x - 8 = 10 6x = 10 + 8 6x = 18 | 6 x = 3 f)-3(5+2x)=15 - 15 - 6x = 15 - 6x = 15 +15 - 6x = 30 | - 6 x = - 5 g)4(x+3)-2)=-6 4 ( -2x -6) = -6 -8x - 24 = -6 -8x = - 6 + 24 -8x = 18 |-8 x = - 18/8 x= 2 i 1/4 h)30-10(2-3x)=-50 30 - 20 + 30 x = - 50 10 + 30x = -50 30x = = -50 - 10 30x = -60 | 30 x = -2
