Write the expression in standard form by expanding and collecting like terms.

A). 4 (8m-7n) + 6 (3n-4m)

B). 9 (r-s) + 5 (2r-2s)

C). 12 (1-3g) + 8 (g+f)

A) 8m-10n

B) 19r - 19s

C) 12 - 28g + 8f

Step-by-step explanation:

To write the equation in standard form:

Distribute into any parenthesis Combine the like terms Write in descending order

A). 4 (8m-7n) + 6 (3n-4m)

32m - 28n + 18n - 24m

8m - 10n

B). 9 (r-s) + 5 (2r-2s)

9r-9s+10r-10s

19r-19s

C). 12 (1-3g) + 8 (g+f)

12 - 36g + 8g + 8f

12 - 28g + 8f