The missing value is 6 so 2/5 = 6/15
Answer:
-6x+12
-9+5a
7x+63
8y-4/5x-12
Step-by-step explanation:
To solve these all you have to do is take the number outside of the parenthesis and multiply them by each term.
-3(2x)-3(-4) All I did here was expand the problem to show what i mean by terms.
-6x+12
Do this for each problem.
0.1(-90)+0.1(50a)
-9+5a
-7(-x)-7(-9) For this one you are taking negatives times negatives so each answer will be positive.
7x+63
4/5(10y)+4/5(-x)+4/5(-15)
8y-4/5x-12
Answer:
x = 4
y = 
Step-by-step explanation:
Ummmm
I'm not sure if this is corrrect but this is what I got
So first you solve 2x+4y=22 to find x
and you get x =
Then you have to subtitute
for
in 
which you then get y= 
After you have to subttitute y=
for y in x =
which you get as x=4
Finally you get the answer as:
x = 4
y = 
3ab...when a = 2 and b = 3
(3)(2)(3) = 6(3) = 18