1) 2-3(x+2)=5-2x. 2)3-5(x+1)=6-4x. 3)0.2-2(x+1)=0.4x. - вопрос №48183941232522351643022104404042254 от tate6 20.11.2020 22:48

Question

Алгебра: 1) 2-3(x+2)=5-2x. 2)3-5(x+1)=6-4x. 3)0.2-2(x+1)=0.4x. 4) 0.4x=0.4-2(x+2). 5)4x-5.5=5x-3(2x-1.5). 6)4-5(3x+2.5)=3x=9.5. 7)5(2=1.5x)-0.5x=24. 8). 3(0.5x-4)=8.5x=18

tate6 · Answer

1)2-3(x+2)=5-2x2-3x-6=5-2x-3x+2x=5-2+6-x=9x=-92)3-5(x+1)=6-4x3-5x-1=6-4x-5x+4x=6-3+1x=43)0.2-2(x+1)=0.4x0.2-2x-2=0.4x-2x-0.4x=2-0.2-2.4x=1.8x=-0.754)0.4x=0.4-2(x+2)0.4x=0.4-2x-40.4x+2x=0.4-42.4x=-3.6x=-1.55)4x-5.5=5x-3(2x-1.5)4x-5.5=5x-6x+4.54x-5x+6x=4.5+5.55x=10x=2...