How do you solve #4x - 11- 2x - 17= - 4#?

1 Answer
Jan 17, 2018

See a solution process below:

Explanation:

First, group and combine like terms on the left side of the equation:

#4x - 2x - 11 - 17 = -4#

#(4 - 2)x + (-11 - 17) = -4#

#2x + (-28) = -4#

#2x - 28 = -4#

Next, add #color(red)(28)# to each side of the equation to isolate the #x# term while keeping the equation balanced:

#2x - 28 + color(red)(28) = -4 + color(red)(28)#

#2x - 0 = 24#

#2x = 24#

Now, divide each side of the equation by #color(red)(2)# to solve for #x# while keeping the equation balanced:

#(2x)/color(red)(2) = 24/color(red)(2)#

#(color(red)(cancel(color(black)(2)))x)/cancel(color(red)(2)) = 12#

#x = 12#