Question

can someone help me find what i did wrong and possibly walk me thru the rest so i have a better understanding?

-(1+7x)-6(-7-x)=36
-1 +7x+42+6x=36.......7x+6x=13x & -1+42=41
13x + 41 = 36

-36 -36
thats where i get stuck and know i did something wrong but not sure what

Answer 1

-(1 + 7x) -6(-7-x) = 36
-1 - 7x + 42 + 6x = 36
-x + 41 = 36
-x = 36 - 41
-x = - 5 (multiply by -1 to make x positive)
x = 5

check...
-(1 + 7x) - 6(-7-x) = 36
-(1 + 7(5) - 6(-7-5) = 36
-(1 + 35) - 6(-12) = 36
-36 + 72 = 36
36 = 36 (correct)

any questions ?

Answer 2

not sure how you got the 41

Answer 3

I combined like terms
-1 + 42 = 41

Answer 4

do you see it ?

Answer 5

duh! these things are always getting me mixed up in one way or another. thank you

Answer 6

it is easy to get confused on these problems...that is why I always check them

Answer 7

you are very welcome...glad i could help