rozwiąż równanie a) 2(x + 3) =10 b) 3(x - 1)+2 = 8 c) 2( 13 - x )-9 = 1 d) 3(1 - x) + 2 = -7 f) 4(3x + 2) + 5 (2x + 3)= -(2x + 13) h) 2(x - 4)= 2(2x-1) + 6 ( x +1)

Kozini18

a) 2(x + 3) =10 2x+6=10 2x=10-6 2x=4 x=2 b) 3(x - 1)+2 = 8 3x-3+2=8 3x=8+1 3x=9 x=3 c) 2( 13 - x )-9 = 1 26-2x-9=1 -2x=1-26+9 -2x=-16 x=8 d) 3(1 - x) + 2 = -7 3-3x+2=-7 -3x=-7-3-2 -3x=-12 x=4 f) 4(3x + 2) + 5 (2x + 3)= -(2x + 13) 12x+8+10x+15=-2x-13 22x+2x=-13-8-15 24x=-36 x=-1,5 h) 2(x - 4)= 2(2x-1) + 6 ( x +1) 2x-8=4x-2+6x+6 2x-10x=4+8 -8x=12 x=-1,5

milutka11

a) 2x+6=10 2x=4/2 x=2 b] 3x-3+2=8 3x=8+3-2 3x=9/3 x=3 c} 26-2x-9=1 -2x=1+9-26 -2x=-16/-2 x=8 d} 3-3x+2=-7 -3x=-7-2-3 -3x=-12/-3 x=4 f} 12x+8+10x+15=-2x-13 12x+1*x+2x=-13-8-15 24x=-36/24 x=-9/6=-1,5 h} 2x-8=4x-2+6x+6 2x-4x-6x=-2+6+8 -8x=12/8 x=-1,5

julia8888

a.2(x+3)=10 2x+6=10 2x=-6+10 2x=4÷2 x=2 b.3(x-1)+2=8 3x-3+2=8 3x=3-2+8 3x=9÷3 x=3 c.2(13-x)-9=1 26-2x-9=1 2x=-26+9+1 2x=-16÷2 x=8 d.3(1-x)+2=-7 3-3x+2=-7 3x=-3-2-7 3x=-12÷3 x=4 f.4(3x+2)+5(2x+3)=-(2x+13) 12x+8+10x+15=-2x-13 12x+10x+2x=-8-15-13 24x=-36÷24 x=-36/24 x=-6/4 x=-1,5 h.2(x-4)=2(2x-1)+6(x+1) 2x-8=4x-2+6x+6 2x-4x-6x=8-2+6 -8x=12÷(-8) x=-12/8 x=-1,5 h.