Упростите выражения:
а) 2x + 3 * (4 - 5x) = ...
б) 5 * (9 - 2m) + 10m = ...
в) - 5a + 8 * (1 + 3a) = ...
г) - 9c + 7 * (1 - 2c) = ...
а) 2x + 3 * (4 - 5x) = ...
б) 5 * (9 - 2m) + 10m = ...
в) - 5a + 8 * (1 + 3a) = ...
г) - 9c + 7 * (1 - 2c) = ...
Answers & Comments
Verified answer
А)2х+3*(4-5х)=2х+12-15х=12-13хб)5*(9-2m)+10m=45-10m+10m=45
в)-5а+8*(1+3а)=-5а+8+24а=19а+8
г)-9с+7*(1-2с)=-9с+7-14с=7-23с