Question

0,3b+(-9c)+(-0,9d)=? x-(-m)-(-p)=? 4x-2y=? 15a+21b=? mx-nx=? 3a-6b+12c=? ab+bc-by=? 0,6x-0,8y=?

Answer 1

X-(-m)-(-p)=x+m+p
4x-2y=2(2x-y)
15a+21b=3(5a+7b)
mx-nx=x(m-n)
3a-6b+12c=3(a-2b+4c)
ab+bc-by=b(a+c+y)
0,6x-0,8y=2(0,3x-0,4y)

Answer 2

1) 0,3b + (-9c) + (-0,9d) = 0,3b - 9c - 0,9d

2) ? + x - (-m) - (-p) = ? + x + m + p

3) ? + 4x - 2y = 4x - 2y

4) 15a + 21b = 36a

5) mx - nx = (m - n)x

6) 3a - 6b + 12c = 3a - 6b + 12c

7) ab + bc - by = ab + (b - y)c

8) 0,6x - 0,8y = 0,6x - 0,8y