43/4+х=8•2 7/8; 7/8+х=5•(5/6-3/5); 0,125•1/4=1/2-х - вопрос №4348278785563501251412012254051245043 от математик215 10.08.2021 17:31

Question

Математика: 43/4+х=8•2 7/8; 7/8+х=5•(5/6-3/5); 0,125•1/4=1/2-х х-0,12•2/5=4²•0,5.

математик215 · Answer

1. сократить на 4[tex]3 + x = 7 \ x = 4[/tex]2. [tex] rac{7}{8} + x = 5 	imes rac{7}{30} \ rac{7}{8} + x = rac{7}{6} \ x = rac{7}{24} [/tex]3.[tex] rac{1}{8} 	imes rac{1}{4} = rac{1}{2} - x \ x = rac{1}{2} - rac{1}{32} \ x = rac{15}{32} [/tex]4.[tex]x - rac{6}{125} = 8 \ x = 8 + rac{6}{125} \ x = rac{1006}{125} [/tex]...