Answer:
x=18
Step-by-step explanation:
(6x+3)+(3x+15)=180
(6x+3x)+(3+15)=180
9x+18=180
-18 -18
9x=162
162/9
x=18
Answer:
x =27
Step-by-step explanation:
3x - 4y=65
lets substitute the value of y in the equation:
3x -4(4) =65
3x = 65 +16
3x= 81
x= 81/3
x = 27
Answer:
25
x
2
−
20
x
y
+
180
y
2
Step-by-step explanation:
Factor 5 5 out of 25 x 2 25x2.
5 ( 5 x 2 ) − 20 x y + 180 y 2 5(5x2)-20xy+180y2
Factor 5 5 out of − 20 x y -20xy.
5 ( 5 x 2 ) + 5 ( − 4 x y ) + 180 y 2 5(5x2)+5(-4xy)+180y2
Factor 5 5 out of 180 y 2 180y2. 5 ( 5 x 2 ) + 5 ( − 4 x y ) + 5 ( 36 y 2 ) 5(5x2)+5(-4xy)+5(36y2)
Factor 5 5 out of 5 ( 5 x 2 ) + 5 ( − 4 x y ) 5(5x2)+5(-4xy). 5 ( 5 x 2 − 4 x y ) + 5 ( 36 y 2 ) 5(5x2-4xy)+5(36y2)
Factor 5 5 out of 5 ( 5 x 2 − 4 x y ) + 5 ( 36 y 2 ) 5(5x2-4xy)+5(36y2). 5 ( 5 x 2 − 4 x y + 36 y 2 )
Isolate the variable by dividing each side by factors that don't contain the variable.
x = 1
-6+3x+4=2-4x+3
-8+7x+1=0
7x=7
x=1
Answer: There are 27 votes for Florida.
Step-by-step explanation:
Hi, to answer this question we have to write an equation:
The number of votes of North Carolina (15) must be equal to the number of votes of Florida (x) minus 12.
Mathematically speaking:
15 = x -12
Solving for x:
15+12 = x
27 = x
There are 27 votes for Florida.
Feel free to ask for more if needed or if you did not understand something.
