70*x-30=460; (200+x)*3=600; 469+(x-342)=921; (321-18)*304*(27609-7609): - вопрос №606525770304602003600469342921321183042760976094000 от Kharin86 21.05.2022 00:26

Question

Математика: 70*x-30=460; (200+x)*3=600; 469+(x-342)=921; (321-18)*304*(27609-7609): 4000=?

Kharin86 · Answer

1) 70x=460+3070x=490x=490:70=72) 600+3x=6003x=600-6003x=03) 469x-160398=921469x=921+160398469x=160867x=3434) 303*304*20000:4000=46056...