Надите корни уравнений 8x+11цел2/11=15. 4x-19цел3/5=23. - вопрос №7608855811211154193523849207404 от aboderu 27.02.2020 22:52

Question

Математика: Надите корни уравнений 8x+11цел2/11=15. 4x-19цел3/5=23. {8цел4/9-x}: 20=7/40. 44: {x-9цел3/4}=1цел9/13.

aboderu · Answer

8х+11 2/11=158х=15 - 11 2/118х=3 9/11х=3 9/11 : 8х=42/11 * 1/8х=21/44.4х - 19 3/5=234х=23+19 3/54х=42 3/5х=42 3/5 : 4х=213/5 * 1/4х=213/20х=10 13/20.(8 4/9 - х:20=7/408 4/9 - х=7/40 * 208 4/9 - х=7/2х=8 4/9 - 3 1/2х=8 8/18 - 3 9/18х=4 17/18.44:(х-9 3/4)=1 9/13х - 9 3/4=44 : 1 9/13х - 9 3/4=44 * 13/22х - 9 3/4=26х=26+9 3/4х=35 3/4...