3(-2a-4)+3a
Help please

-3a-12

Step-by-step explanation:

start by distributing ( or multiplying) the 3 into the numbers in the parenthesis but NOT to 3a (bc it's not in the parenthesis):

3(-2a-4)+3a —> -6a-12+3a

**Distributing the 3 into the parenthesis simplifies the expression in order to make it easier to solve.

Then you can start combining like terms (-6a and 3a):

-6a-12+3a —> -3a-12

-3a-12 is your answer.

**Just a side note, some students may think they have to keep going because they think that you have to divide the 3 from both numbers to simplify it completely, but you don't. Because this isn't an equation where you have to solve for 'a', -3a-12 is the furthest you can go with this answer.

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

hello, sorry being so rude after all that fighting i found it kind of funny, so as me saying sorry here is an answer!

since the table showed her that   2km = 2000m.

to determine, how many km in 2000m, she would divide by 1000.

= 2000 / 1000 = 2 km.

similarly, for 8000m = 8000 / 1000 = 8 km

cheers to savings

~

your pal papaguy