The properties that justify the steps taken to solve the given
system are as follows:
6x – 8y = 18, 2x + 8y = 6
[Multiplication property of equality]
8x = 24
[Addition property of equality]
x = 3
[Division property of equality]
3(3) – 4y = 9
[Substitution property of equality]
9 – 4y = 9
[Simplify]
-4y = 0
[Subtraction property of equality]
y = 0
[Division property of equality]
Answer:
<em>n = - 2 </em>
Step-by-step explanation:
( a ± b )² = a² ± 2ab + b²
~~~~~~~~~~~
n² + 4n + 4 = ( n + 2 )² = 0 ⇒ <em>n = - 2</em>
Answer:
I'd say go to Wikipedia and look it up. It is something that cannot be summarized into just a few words.
Step-by-step explanation:
They are equal because
1 yd=3ft
25 yds= x feet
x= 25*3
feet=75
Answer:
12 ounces
Step-by-step explanation:
R : Y
3 : 5
X : 20
X/3 = 20/5
X = 12