How do you solve #2x -4 = 5x +17#?

4 Answers
Nov 7, 2017

#x=-7#

Explanation:

Begin by adding #4# and subtracting #5x# to both sides:

#2xcancel(-4color(red)(+4))color(blue)(-5x)=cancel(5xcolor(blue)(-5x))+17color(red)(+4)#

#2x-5x=17+4#

#-3x=21#

Divide #-3# from both sides

#cancel(-3)/cancel(color(red)(-3))x=21/color(red)(-3)#

#x=-7#

Nov 7, 2017

#x= -7#

Explanation:

Collect like terms and bring #x# to one side. Take the #-4# to the other side so the sign changes. That means add #4# to #17#.

#2x-4=5x+17#

#2x=5x+17+4#

#2x=5x+21#

Now take #5x# to the other side with the other #x#.

#2x-5x=21#

#-3x=21#

#x= -7#

Nov 7, 2017

To solve this equation...

Explanation:

  1. Isolate the variables
    #2x-5x=4+17#
  2. Add
    #-3x=21#
  3. Divide the terms on both sides by #-3#
    #x=-7#

SOLUTION:

#x=-7#

Nov 10, 2017

Transfer all the variables to one side and all the numbers to the other
#2x-5x=4+17#
Solve
#-3x=21#
Transfer #-3#
#x=21/(-3)#
#x=-7#