How do you solve #-10-n/5=7#?
2 Answers
May 13, 2017
Explanation:
#"to eliminate the fraction, multiply ALL terms by 5"#
#rArr(-10xx5)+cancel(5)xx-n/cancel(5)=(7xx5)#
#rArr-50-n=35#
#"add 50 to both sides"#
#cancel(-50)cancel(+50)-n=35+50#
#rArr-n=85#
#"multiply both sides by - 1"#
#rArrn=-85#
#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
#"left side "=-10-((-85))/5=-10+17=7=#
#rArrn=-85" is the solution"#
May 13, 2017
-85
Explanation:
Move 10 to the other side of the equation and change the sign
Multiply 17 by 5
Move the - sign to the other side