How do you solve #15x - ( 8x + 14) = 21#?
1 Answer
Jul 19, 2018
Explanation:
#"distribute and simplify left side"#
#15x-8x-14=21#
#7x-14=21#
#"add 14 to both sides"#
#7x=21+14=35#
#"divide both sides by 7"#
#x=35/7=5#
#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.
#(15xx5)-(40+14)=75-54=21#
#x=5" is the solution"#
