Answer: 122
Step-by-step explanation: Substitute the values of <em>x</em> and <em>y</em> into the expression.

"Fill in the blanks" with the numbers given for <em>x</em> and <em>y</em>.

 
        
             
        
        
        
Answer (x,y) (3, -2)
Explanation:
using the 
substitution method
y
=
x
−
5
→
(
1
)
y
=
−
2
x
+
4
→
(
2
)
since both equations are expressed in terms of x we
can equate them
⇒
x
−
5
=
−
2
x
+
4
add 2x to both sides
2
x
+
x
−
5
=
−
2
x
+
2
x
+
4
⇒
3
x
−
5
=
4
add 5 from both sides
3
x
+
5
−
5
=
4
+
5
⇒
3
x
=
9
divide both sides by 3
3
x
3
=
9
3
⇒
x
=
3
substitute this value in 
(
1
)
y
=
3
−
5
=
−
2
As a check
substitute these values into 
(
2
)
right 
=
−
6
+
4
=
−
2
=
 left
⇒
point of intersection 
=
(
3
,
−
2
)
        
             
        
        
        
12 = 12/1 = 24/2, 24/2+1/2=25/2 so 25/2, and it's in simplest form because 2 can't go into 25
        
             
        
        
        
Answer:


Step-by-step explanation:
Let 
x ---> the number
we know that
The algebraic expression is equal to multiply the number by 4, add 5 and equal 8
so

Solve for x
subtract 5 both sides

Divide by 4 both sides

 
        
             
        
        
        
Answer:
D. 2
Step-by-step explanation:
Common denominator is already presented which is 4.
-3/4 and 3/4 cancel each other out.
you can also convert to decimal form -3/4 + 2 3/4 is the same as:
-0.75 + 2.75 = 2.