Question

2(4a-0.5b)-(3a-7b) если a=-0.4 b=1/3

Answer 1

2(4*-0,4 - 0,5*13) - (3*-0,4 - 7*13)= 2( -1,6 -16) - (-1,2 - 730)=6330=2110

Answer 2

2(4a-0.5b)-(3a-7b)=8a-1b-3a+7b=5a+6b Если a=-0.4 b=1/3? то 5*(-0.4)+(6*1)/3=2+2=4