2n-5=21
add 5 to both sides
2n=26
divide both sides by 2
n=13
I hope I helped! :)
The solution is x = 2 and y = 4
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
y = 2x -------- eqn 1
x = -y + 6 ----------- eqn 2
We can solve the system of equations by substitution method
<em><u>Substitute eqn 1 in eqn 2</u></em>
x = -2x + 6
Move the variables to one side and constants to other side
x + 2x = 6
3x = 6
Divide both sides of equation by 3
x = 2
<em><u>Substitute x = 2 in eqn 1</u></em>
y = 2(2)
y = 4
Thus the solution is x = 2 and y = 4
Answer:
C. -1/2
Step-by-step explanation:
well the formula for slope is m=(y2-y1/x2-x1). y2 = -5 y1= 3 x2 = 2 x1 = -14. put that all together to get -5-3/2-(-14). well -5 - 3 = -8. the second one is like a multiplication problem so a negative minus a negative is a positive. which give u 2 + 14 = 16. so you get the fraction -8/16 both are divisible by 8 so divide the equation by 8 and you get -1/2.
2 is 60, 1 is 60, 3 is 55, 4 is 120
Answer:9
Step-by-step explanation:
22-13=k
so
9=k
