7(x -2) + 3(x + 2) = 5(x - 6)

Question

fibonaccichick666 · Answer

do you know how to distribute?

anonymous · Answer

yeah but this question is really hard and can not figure it out because when I did i must have done it wrong

fibonaccichick666 · Answer

ok, do it step by step for me? I'll fix any errors, just describe what you are doing in each step

anonymous · Answer

7(x-2)+3(x+2)=5(x-6) 
7(x + -2) + 3(x + 2) = 5(x + -6)
-14 + 7x + 3(2 + x) = 5(x + -6)
-14 + 6 + 7x + 3x = 5(x + -6)
-14 + 6 = -8 + 7x + 3x = 5(x + -6)
-8 + 10x = -30 + 5x
-8 + 5x = -30
-30 + 8 = -22
5x = -22
Divide each side by '5'.
x = -4.4

fibonaccichick666 · Answer

ok, don't rearrange in the same step, it makes it much more confusing on you

anonymous · Answer

is it right tho and the program I use is telling him different or did I do something wrong lol

fibonaccichick666 · Answer

but it looks right

anonymous · Answer

oh okay I will message my teacher and ask him

fibonaccichick666 · Answer

but, -4.4 seems an odd answer

anonymous · Answer

y it is telling me its wrong

fibonaccichick666 · Answer

did you round?

anonymous · Answer

no

anonymous · Answer

-22 divided by 5 is -4.4 exactly

fibonaccichick666 · Answer

wait, I see here:
-8 + 10x = -30 + 5x
-8 + 5x = -30
-30 + 8 = -22
5x = -22

anonymous · Answer

um idk?

fibonaccichick666 · Answer

hmm wait no it's not what I thought there, I am going to do it myself, I must be missing your error give me a sec

anonymous · Answer

okay

fibonaccichick666 · Answer

$$7(x -2) + 3(x + 2) = 5(x - 6)$$$$7x-14+3x+6=5x-30$$$$10x-8=5x-30$$$$5x-8=-30$$$$5x=-22$$$$x=\frac{-22}{5}$$

maybe try inputting the fraction?

anonymous · Answer

i will try that too ty

fibonaccichick666 · Answer

np, sorry, your hw system sucks

fibonaccichick666 · Answer

@satellite73 , can you check me and him please?  We are getting the same answer, but it is wrong?