23x+x-10+38 36-(5x-11)=12 487+17x=572 2585: (7+8x)=47 - вопрос №776037123103836511124871757225857847 от linaserdyuk13 13.10.2020 20:50

Question

Математика: 23x+x-10+38 36-(5x-11)=12 487+17x=572 2585: (7+8x)=47

linaserdyuk13 · Answer

1) 23x+x-10+382(12x+13)24x+262) 36-(5x-11)=1236-5x+11=12-5x=-35x=7 3) 487+17x=57217x=572-48717x=85x=54) 2585:(7+8x)=472585/7+8x=47 (дробь) 2585=47(7+8х) 55=7+8х-8х=7-55-8х=-48x=6, x(неравно)-7/8 (дробь) х=6...