Answer:
the answer is that you would purchase 3 pens.
Step-by-step explanation:
if you buy 5 highlighters that would be
1.09 x 5 = 5.45
and then if you buy 3 pens that would be
0.69 x 3 = 2.07
if you add them together you get 7.52 :)
So 5k-7=-7
You need to do the opposite of addition,which is subtraction so...
5k-7=-7
+7
__
K=0
and to double check it,replace the (or variable) with our answer (0)...
so
5×0-7=-7
solve the problem...and
-7=-7√
That expression can’t be simplified and the answer is unknown. Finding what 3x+4y is impossible unless more information is provided.
Multiplying fractions is simple. You just multiply across so 7/3 x 2/3 is 14/9 and that is the simplest form.
