Надо ! (1/4+3/4х): 0,45=25/36 и 22×(17/26х-3/4)=5целых1/13 - вопрос №746872014340452536221726345113 от artyom2980 14.05.2021 12:47

Question

Математика: Надо ! (1/4+3/4х): 0,45=25/36 и 22×(17/26х-3/4)=5целых1/13

artyom2980 · Answer

1/4+3/4х=25/36×0,45=5/161/4+3/4х=5/163/4х=5/16-1/4=1/163/4х=1/16х=1/16÷3/4=1/12х=1/1222*(17/26х-3/4)=5 1/13 17/26х-3/4=66/13*1/2217/26х=3/13+3/417/26х=12/52+39/52 Х=51/52*26/17 Х=3/2 Х=1 1/2 ...