Answer:
x = 535 + 3/4n Over 8 --> Or in simplified form --> 66.875 + 3/32n
y = -166 / 3-4n
Step-by-step explanation:
1-) To find y, we will have to get rid of x in one of the equation.
So, we will multiply first equation by -4.
> -4 ( 2x + ny ) = -4 ( 51 )
> -8x - 4ny = -204
Then we will use the elimination method.
> -8x - 4ny = -204
8x + 3y = 38
+ -----------------------
> 3y - 4ny = -166
To isolate y, we will factor it out.
> y ( 3 - 4n ) = -166
Finally, we will divide ( 3 - 4n ) from both sides to achieve our desired result that the question asks.
> y = -166 / 3 - 4n
2-) To find x, we will substitute our y result into the second equation.
> 8x + 3 ( -166 / 3 - 4n ) = 38
> 8x - 498 + 1 - 3/4n = 38
> 8x - 497 - 3/4n = 38
> 8x - 3/4n = 535
> 8x = 535 + 3/4n
> x = 535 + 3/4n Over 8
> x = 535/8 + 3/32n
> x = 66.875 + 3/32n
It looks messy but I hope it will be understood.
If I have any inaccuracies please let me know.
Have a nice day and never stop questioning!
Answer:
<em>210</em><em>/</em><em>{</em><em>s</em><em> </em><em>60</em><em>}</em>
<em>Answer</em><em> </em><em>is</em><em> </em><em>this</em><em> </em>
Mark as brainlist
Answer:
x= - 2
Step-by-step explanation:
hello :
note : the equation of the axis symmetry for the parabola : y =ax²+bx+c
when : a≠ 0 is : x=- b/2a
in this exercice : a=1 and b=10
so : x= -10/2 = -5
Answer:
Solution for 2z-4=12-1z equation:
Simplifying
2z + -4 = 12 + -1z
Reorder the terms:
-4 + 2z = 12 + -1z
Solving
-4 + 2z = 12 + -1z
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Add 'z' to each side of the equation.
-4 + 2z + z = 12 + -1z + z
Combine like terms: 2z + z = 3z
-4 + 3z = 12 + -1z + z
Combine like terms: -1z + z = 0
-4 + 3z = 12 + 0
-4 + 3z = 12
Add '4' to each side of the equation.
-4 + 4 + 3z = 12 + 4
Combine like terms: -4 + 4 = 0
0 + 3z = 12 + 4
3z = 12 + 4
Combine like terms: 12 + 4 = 16
3z = 16
Divide each side by '3'.
z = 5.333333333
Simplifying
z = 5.333333333
Step-by-step explanation: