1. Solve the common solution of x+y=15 and x-y=3, the value of x is?

2. The value of y in the equations x+y=20 and x-y=36 is?

3. Solve the common solution of 6x+3y=38 and 3x+2y=18, then the value of x is?

4. Solve the common solution of 4x+5y=18 and 2x+3y=38, then the value of y is?

5. Solve the common solution of 3x + y = 15 and 15x = 5, then the value of y is?

To solve for the linear Equation, there are 3 methods:

1. Slope point/ Intercept Method & One point method

2. Two-point method

3. Least Square Method

6. Find the linear equation given below using any of the 3 methods. Show your solutions here.

x	y
500	750
600	800
700	850
800	900