Answer:
normally i would but i think it will be better if you did it yourself. i mean you can always use a calculator
explanation:
I hope this helps you!
2n-5=21
add 5 to both sides
2n=26
divide both sides by 2
n=13
I hope I helped! :)
5.3851648071..... is the irrational number your looking for
Answer:
(3, - 1 )
Step-by-step explanation:
Given the 2 equations
2x - 3y = 9 → (1)
x + 2y = 1 → (2)
Rearrange (2) expressing x in terms of y by subtracting 2y from both sides
x = 1 - 2y → (3)
Substitute x = 1 - 2y into (1)
2(1 - 2y) - 3y = 9
2 - 4y - 3y = 9
- 7y + 2 = 9 ( subtract 2 from both sides )
- 7y = 7 ( divide both sides by - 7 )
y = - 1
Substitute y = - 1 into (3) for corresponding value of x
x = 1 - 2(- 1) = 1 + 2 = 3
solution is (3, - 1 )
not enough information to solve it as there are two unknowns in one inequality
