4(1-0.5а)=-2(3+2а) 5(x+1.2)=12.5x 1/2 (4- 3 1/2x)=1 - вопрос №348052941052325121251243121141243224232 от temamojet1997 19.04.2020 03:19

Question

Математика: 4(1-0.5а)=-2(3+2а) 5(x+1.2)=12.5x 1/2 (4- 3 1/2x)=1 1/4x -1/2 4(3-2x)+24=2(3+2x)

temamojet1997 · Answer

4(1-0,5a)=-2(3+2a)4-2a=-6-4a-2a+4a=-6-42a=-10a=-10:2a=-5==========5(x+1,2)=12,5x5x+6=12,5x5x-12,5x=-6-7,5x=-6x=-6:(-7,5)x=0,8=============4(3-2x)+24=2(3+2x)12-8x+24=6+4x-8x-4x=6-12-24-12x=-30x=-30:(-12)x=2,5=============...