Question

did I do this right.

Simplify the expression –4(x – 7) + 3(x + 9).


-4(x-7)+3(x+9)
-4x-(-28)+3x+27
-4x+3x
-1x-(-28)+27
27x+27=54x

Answer 1

have you simplified it or do you need help with it

Answer 2

need help

Answer 3

ok take the 27x to the right hand side. 27=54x-27x

Answer 4

27=27x

Answer 5

okay

Answer 6

then divide the x by 27

Answer 7

alright

Answer 8

and 27 by 27 so 27x/27=27/27

Answer 9

x=1

Answer 10

now to check if the answer is correct substitute the x=1 into the original equation

Answer 11

my bad i solved it instead of simplifying it sorry

Answer 12

okay

Answer 13

give me 2 mins

Answer 14

so we have 27x-27=54x

Answer 15

we take the 27x and 27 to the right hand side

Answer 16

so we have 54x-27x-27=0
27x-27=0
9(3x-3)=0
and that is the simplified version

Answer 17

satisfied?