A) 2/3x=18 b) 3/4x=27 c) (2x--7)=4 d) 5(x-1,2)-3x=2 - вопрос №23183427274512322710216101771 от Anastasija291205 17.11.2021 13:21

Question

Алгебра: A) 2/3x=18 b) 3/4x=27 c) (2x--7)=4 d) 5(x-1,2)-3x=2 e) (2+-7)=10 f) 2(x-1,5)+x=6

Anastasija291205 · Answer

A) x =18 :2/3x=18 *3/2x=27b) x=27 :3/4x=27 *4/3x=36c) 2x -5 -3x +7=4-x +2=4-x=4-2-x=2x =-2d) 5x -6 -3x =22x =8x =4e) 2+3x -4x+7=10-x+9=10-x=1x= -1f) 2x -3+x =63x =9x =3...