How do you solve #4+ 6( x + 2) = 2- ( x - 3)#?

1 Answer
May 27, 2017

See a solution process below:

Explanation:

First, remove the terms in parenthesis on the right side of the equation being careful to manage the signs of the individual terms correctly:

#4 + 6(x + 2) = 2 - x + 3#

#4 + 6(x + 2) = 2 + 3 - x#

#4 + 6(x + 2) = 5 - x#

Next, eliminate the terms in parenthesis on the left side of the equation by multiplying each term within the parenthesis by the term outside the parenthesis:

#4 + color(red)(6)(x + 2) = 5 - x#

#4 + (color(red)(6) xx x) + (color(red)(6) xx 2) = 5 - x#

#4 + 6x + 12 = 5 - x#

#4 + 12 + 6x = 5 - x#

#16 + 6x = 5 - x#

Then, subtract #color(red)(16)# and add #color(blue)(x)# to each side of the equation to isolate the #x# term while keeping the equation balanced:

#-color(red)(16) + 16 + 6x + color(blue)(x) = -color(red)(16) + 5 - x + color(blue)(x)#

#0 + 6x + color(blue)(1x) = -11 - 0#

#(6 + color(blue)(1))x = -11#

#7x = -11#

Now, divide each side of the equation by #color(red)(7)# to solve for #x# while keeping the equation balanced:

#(7x)/color(red)(7) = -11/color(red)(7)#

#(color(red)(cancel(color(black)(7)))x)/cancel(color(red)(7)) = -11/7#

#x = -11/7#