-4(2,7х-4,9)+3,8х-8=-10.8x+19.6+3.8x-8=-7x+11.6
-7x+11.6=-7*(-1/10)+11.6=12.3
-4(2,7х-4,9)+3,8х-8 = -4(2,7х-4,9)-4(2 - 0,95х) = -4(2,7х- 4,9 + 2 - 0,95х) = -4(1,75х -2,9) = -4(1,75*(-1/10) -2,9) = -4( -0,175 - 2,9) = 0,7 + 11,6 = 12,3
м-да -_-
-4(2,7х-4,9)+3,8х-8=-10.8x+19.6+3.8x-8=-7x+11.6
-7x+11.6=-7*(-1/10)+11.6=12.3
-4(2,7х-4,9)+3,8х-8 = -4(2,7х-4,9)-4(2 - 0,95х) = -4(2,7х- 4,9 + 2 - 0,95х) = -4(1,75х -2,9) = -4(1,75*(-1/10) -2,9) = -4( -0,175 - 2,9) = 0,7 + 11,6 = 12,3
м-да -_-