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solve equations with inequality instead of equal sign is very similiar, only have to worry about sign changing operations
i'm lost sorry
do you know how to solve this 21k -3n + 9p = 3p + 12
if there is an equal sign, how do you solve for n?
first do i add something?
only difference is if u multiply both of them by -1 , then what was greater will be more negative
see how -1 works with the number line now?
yes but now how do i start solving?
the same way you solve normal equations, only remember how multiplication by negative number changes it
21k -3n + 9p > 3p + 12 isolate for n
solve for n like you do a normal equation, keep track of the number of times you multiply by a negative number
if the number of times you multiply by a negative number is odd, then you flip sign else u keep the sign oriented same way
can i put 3p and 12 together?
what do u mean?
ya, u have to have n all by itself
21k -3n + 9p > 3p + 12 okay so we saw how adding and subtracting will keep the inequality, as everything just gets shifted left or right
21k -3n + 9p > 3p + 12 so subtract 21k from both side and 9p
21k -3n + 9p > 3p + 12 -3n > 3p+12 -21k -9p
what do you think we should to now?
u can go the other way too u can add 3n to both sides as well as subtract 3p and 12 from both sides 21k -3n + 9p > 3p + 12 21k + 9p -3p - 12 > 3n notice in this case it automatically takes care of the sign flip
can you help me with another one? like walk through w me
yep, did u finish this one though, what did u get?