What is the solution to the equation -2(1 + 5a) = -6(a+3) ?

a =

Question

What is the solution to the equation -2(1 + 5a) = -6(a+3)   ?

a =

7thgrader · Answer

@Kainui @Ashchu117 @sammixboo @LittleRedRiding @mathslover

7thgrader · Answer

@DuckDynastyfan923

anonymous · Answer

I would start by distributing to get rid of parenthesis, try that

anonymous · Answer

^^ exactly. can you do -2 * 1 and -2 * 5a?

7thgrader · Answer

so do i have to find out what number makes them the same number?

anonymous · Answer

ummmm... what?

7thgrader · Answer

-2 x 6a = -6(a + 3)

anonymous · Answer

you have to find out what a is equal to

7thgrader · Answer

-2 x 6 x a = -6 x (a + 3)

anonymous · Answer

I think what you mean is,   you have to find a value for a  so that both sides of the equation are equal,  if thats what you mean, then yes thats true

anonymous · Answer

no, that is incorrect. @7thGrader your equation, after you distribute, would be -2 + -10a= -6(a+3)

anonymous · Answer

then you will distribute -6 to a and 3. -6 * a is -6a. -6 * 3 is what?

7thgrader · Answer

i know i need to learn but can someone get the answer for me?  my mom said if i get this done i can stay home today

7thgrader · Answer

i will let you explain but will you give me what A equals first?

7thgrader · Answer

not to rush it's just i wanna stay home

anonymous · Answer

err, I'm going to have to walk you through it, just giving you the answer is against the CoC. can you do -6 * 3?

7thgrader · Answer

ye
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7thgrader · Answer

- 18

anonymous · Answer

good. now you have the equation -2 -10a = -6a - 18. next we will subtract -6a from both sides to get the variable on one side of the equation. after you do that, you have the equation -2 -6a -10a = -18.

anonymous · Answer

then you add 2 to both sides to cancel out the -2. what is -18 + 2?

7thgrader · Answer

-16

anonymous · Answer

good. now you have -6a -10a = -16. now we combine like terms- so what is -6 -10?

7thgrader · Answer

4?

anonymous · Answer

no, -16.

anonymous · Answer

now you have -16a = -16. divide both sides by -16 to get your answer. what is -16/-16?

7thgrader · Answer

you didn't put a + sign

7thgrader · Answer

1

anonymous · Answer

thats because everything is negative...

anonymous · Answer

correct! so you have your answer- a = 1. :)

7thgrader · Answer

thanks!

anonymous · Answer

no problem. :)

anonymous · Answer

(dont forget to close the question. )

7thgrader · Answer

can you help with one fast one i dont understand?

7thgrader · Answer

just did

anonymous · Answer

sorry, i cant right now, i gtg.

anonymous · Answer

i will maybe later tho

ashchu117 · Answer

Why was I tagged here?