if 3(x+2)-5=15+x what is the value of x

Question

anonymous · Answer

Expand:
3x+6-5 =15 + x

Make x the subject:
3x - x = 15 - 6 + 5
x = ?

anonymous · Answer

14??

anonymous · Answer

No, 3x = 14.
but x = ? @ericmyer

jamierox4ev3r · Answer

x=8

anonymous · Answer

thank but i want to learn how to do it not just the answer

anonymous · Answer

3x - x = 15 - 6 + 5
2x = 14
x = 7

anonymous · Answer

You would be expanding 3(x+2) first by using the distributive property, then making x the subject of the expression.

jamierox4ev3r · Answer

3x+6=15+x
-x            -x
2x-1=15
     +1 +1
2x=16
/2   /2
x=8

jamierox4ev3r · Answer

this is the process

anonymous · Answer

how did you get the 1 in 2x-1=15

jamierox4ev3r · Answer

you add one to both sides to get rid of the one on the other side

jamierox4ev3r · Answer

my bad the very fist line is supposed to be 3x+6-5=15+x

jamierox4ev3r · Answer

then, 6-5=1, when you add like terms

anonymous · Answer

couldn't i say the first line is 6x-5=15+x

jamierox4ev3r · Answer

well i don't know where you get 6x... I will map out the process for you again

jamierox4ev3r · Answer

3(x+2)-5=15+x 
3x+6-5=15+x
3x+1=15+x
-x           -x
2x+1=15
    -1   -1
2x=14
/2   /2
x=7
*the answer is different than from before because i caught a small calc. error from before.*

anonymous · Answer

so were did you get the your 6

jamierox4ev3r · Answer

when you distribute the parentheses, 3*x=3x, and 3*2=6

anonymous · Answer

awwwwwwww I see

jamierox4ev3r · Answer

okay do you understand?

anonymous · Answer

yes you are awsome

jamierox4ev3r · Answer

well thats good let me know if you have another problem