Can i get the steps to this equation please !

2a-4(a-5)=10

a=5

Step-by-step explanation:

You'll want to expand the -4(a-5) first.  That'll be :

-4a+20.  

So 2a-4a+20=10.  

Variables on the left, plain numbers on the right:

2a-4a=10-20

-2a=-10

-a=-5

a=5

Done.  

this is answer of 144 cubic meters

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x