Question

5(3c - 2) + 2(4 - 7с);
3(18+ 2y) - 4(2y – 6).​

Answer 1

$5(3c - 2) + 2(4 - 7c)=15c-10+8-14c=c-2\\3(18+ 2y) - 4(2y - 6)=54+6y-8y+24=78-2y$

Answer 2

Ответ:

$1.15c - 10 + 8 - 14c = c - 2$

$54 + 6y - 8y + 24 = 78 - 2y = 2(39 - y)$