First group the coefficients together on their side of the equal sign.
-x + 3x = 2x.
Then, since it is a positive number, subtract it from that side and the other side.
On the other side, the x becomes -x.
Add the 6 from the other side to the 8 to make 14.
14 = -x
Divide both sides by -1, to get the answer.
x = -14
You just need to replace x with the value given
x = -5
-27
27
-8
-16
x = -15
-67
57
-20
-28
× = 0
-7
12
-2
-10
Answer:
a
Step-by-step explanation:
let's call the children "c" and the adults "a"
the total # of people in the restaurant = c+a
so 2/9 of (c+a) = a
therefore 2/9c + 2/9a = a
and a + 95 = c since there are 95 MORE children.
Let's substitute a+95 for c in the equation 2/9(c+a) = a
this gives us 2/9(a+95 + a) = a
then 2/9 a + 2/9(95) + 2/9(a) = a
so 4/9a +190/9 = a
and 190/9 = 5/9 a
so 190 must = 5a
finally a = 38 so c must = 38 + 95 = 133 there are 133 children
