Assignment:
Q1. Solve each system by substitution. Determine whether the equations are independent, dependent, or inconsistent.
1. y =-3x+19
y = 2x-1
2. y = -4x-7
y =3x
3. y = x+4
3y-5x = 6
4. 2x- y = 6
2x – y = 3
Solve each system by the substitution method.
1. x + 3y =2
-x + y =1
Solve each system by addition method
1. x + y = 7
x – y = 9
2. x –2y = -1
-x + 5y = 4
3. 3x + 5y = -11
x –2y = 11
4. 2x = 2-y
3x + y = -1
Solve each system by the addition method. Determine whether the equations are independent, dependent, or inconsistent.
1. x –y = 3
-6x + 6y = 17
Solve each system by addition method
1. 3/7x + 5/9y =27
1/9x + 2/7y = 7
2. 3x –2.5y = 7.125
2.5x – 3y = 7.3125
Provide complete and step by step solution for the question and show calculations and use formulas.