How do you solve #7( x - 3) = 2( x - 9) + 2x#?

1 Answer
Mar 21, 2018

Answer:

#x=1 #

Explanation:

Firstly, we would open up the bracket on one side, and to open the bracket, we would bring the outside number in;

#7 times x=7x" "# and #" "7 times -3= -21#

And since we're subtracting the left side would give us

#7x-21#

Moving on to the right side we would firstly, open up the bracket giving us

#2x-18+2x#

then we would sub #4x# from the right side because #2x+2x# gives us #4x#, then we would take that #4x# and sub it to the #7x# giving us

#3x-21=-18#

Then we would add #21# to the right side because were subtracting on the left side. That would give us

#3x=3#

and to get #x# by itself, we would divide the #3# from both sides giving us a final answer of........

#x=1#