Answer:
25
Step-by-step explanation:
4c6d3 x 3c4d
4 x 3=12
12c
you add the powers so 6+4=10
12c10
d3 x d=d3
12c10d3
that is the answer i think
Answer:


Step-by-step explanation:
Given


Required
Solve
Substitute
in 

Open bracket

Collect like terms


Divide both sides by 2

Substitute
in 



Answer:
2 < x
Step-by-step explanation:
7-2(x + 2) <-4 - 3(1 - x)
Distribute
7 - 2x-4 < -4 -3 +3x
Combine like terms
3 -2x < -7+3x
Add 2x to each side
3 -2x+2x< -7+3x+2x
3 < -7+5x
Add 7 to each side
3+7 < -7+7+5x
10 < 5x
Divide each side by 5
10/ 5 < 5x/5
2 < x
Answer:
-54
Explanation:
First we need to use the distributive property on 7(x+5), so do 7×x + 7×5. Simplify that and you get 7x+35.
Subtract 35 from both sides and you get 7x= -63. Divide both sides by 7 and you get x= -9.
Now we can substitute -9 for x, so do 6×-9 and you get -54.
Hope this helps :)