Question

1. 3 (2-3k)+ -4 (3+k)=
2. 5 (x-2y+1) + -4 (y-3)
3. 2 (m-5)+3(7-n)

Answer 1

1. 3(2-3k) + -4(3+k)
= 6 - 9k - 12 - 4k
= - 6 - 13k
2. 5(x-2y+1) + -4(y-3)
= 5x - 10y + 5 - 4y + 12
= 5x - 14y + 17
3. 2(m-5) + 3(7-n)
= 2m - 10 + 21 - 3n
= 2m - 3n + 11