How do you solve #-7/9x-2=3#?

1 Answer
Jun 14, 2017

Answer:

#x=-45/7#

Explanation:

#"add 2 to both sides"#

#-7/9xcancel(-2)cancel(+2)=3+2#

#rArr-7/9x=5#

#"multiply both sides by 9 to eliminate the fraction"#

#cancel(9)xx-7/cancel(9)x=45#

#rArr-7x=45#

#"divide both sides by - 7"#

#(cancel(-7) x)/cancel(-7)=-45/7#

#rArrx=-45/7#

#color(blue)"As a check"#

Substitute this value into the left side of the equation and if equal to the right side then it is the solution.

#-cancel(7)/9xx-45/cancel(7)-2=45/9-18/9=3=" right side"#

#rArrx=-45/7" is the solution"#