How do you solve #4x=-3x-7#?

1 Answer
Apr 24, 2018

#x=-1#

Explanation:

#"add 3x to both sides"#

#4x+3x=cancel(-3x)cancel(+3x)-7#

#rArr7x=-7#

#"divide both sides by 7"#

#(cancel(7) x)/(cancel(7))=(-7)/7#

#rArrx=-1#

#color(blue)"As a check"#

#" left "=(4xx-1)=-4#

#"right "=-(3xx-1)-7=3-7=-4#

#rArrx=-1" is the solution"#