Answer:
Step-by-step explanation:
•Solve equation 1 for the variable x.
x = 3y - 27
•Plug this in for variable x in equation 2.
2×(3y-27) - 2y = 18
4y = 36
•Solve equation 2 for the variable y.
4y = 36
y = 9
•By now we know this much:
x = 3y-27
y = 9
•Use the y value to solve for x.
x = 3(9)-27 = 0
•Solution: {x,y} = {0,9}
This is the isosceles right triangle, the diagonal of a square, the thing that so upset the Pythagoreans. The two sides and diagonal of a square are in ratio
so we get

We could have also gotten this using Trig:


Or by recognizing u=v because remaining angle is 45 so this must be isosceles so



we are given

step-1: Simplify expression inside parenthesis
we will combine like terms
so, firstly we will take common denominator



step-2: Distribute 1/2 inside


step-3: Combine like terms

We can find common denominator




we can also write it as in mixed form

so, we will get

option-C.............Answer
X=1
At least I'm 99% sure
Sorry. I'm not good at math