How do you solve # 5x - 3 = 13 - 3x #?
1 Answer
May 29, 2018
Explanation:
#"collect terms in x on the left side of the equation and"#
#"numeric values on the right side"#
#"add "3x" to both sides"#
#5x+3x-3=13cancel(-3x)cancel(+3x)#
#8x-3=13#
#"add 3 to both sides"#
#8xcancel(-3)cancel(+3)=13+3#
#8x=16#
#"divide both sides by 8"#
#(cancel(8) x)/cancel(8)=16/8rArrx=2#
#color(blue)"As a check"# Substitute this value into the equation and if both sides are equal then it is the solution.
#"left "=(5xx2)-3=10-3=7#
#"right "=13-(3xx2)=13-6=7#
#x=2" is the solution"#
