Question

упростите выражение:

а)3а-2b+12a+7b;

б)3(4х-1)+2;

в)8m+(m-2)-(5m+3).

Answer 1

а)3а-2b+12a+7b=15a + 5b

б)3(4х-1)+2 = 12 x - 3 +2= 12x - 1

в)8m+(m-2)-(5m+3) = 8m + m -2 -5m -3 = 4m -5

Answer 2

a) 3a-2b+12a+7b=15a+5b

б)3(4x-1)+2=12x-12+2=12x-14