Question

1. (3x-11)X2-5X(4-3x)
2. (8a-1)X(-6)+(3a-7)X(-2)
3. -0,5(-2x+4)-(10-x)
4. a) 3b+(5a -7b)
b) -(8x-4)+4
c) (2+3x)+(7x-2)
d)3(8m-4)+6m
e) 15-5(1-a)-6а
ПРИВЕДИТЕ ПОДОБНЫЕ СЛАГАЕМЫЕ

Answer 1

1.(3х-11)•2-5•(4-3х)=6х-22-20+15х=21х-42

2.(8а-1)•(-6)+(3а-7)•(-2)=-48а+6-6а+14=-54а+20

$3. - 0.5( - 2x + 4) - (10 - x) = x - 2 - 10 + x = - 12$

$4.a)3b + (5a - 7b) = 3b + 5a - 7b = - 4b + 5a$

$b. - (8x - 4) + 4 = - 8x + 4 + 4 = - 8x + 8$

$c)(2 + 3x) + (7x - 2) = 2 + 3x + 7x - 2 = 10x$

$d)3(8m - 4) + 6m = 24m - 12 + 6m = 30m - 12$

$e)15 - 5(1 - a) - 6a = 15 - 5 + 5a - 6a = 10 - a$