Question

Solve the equations for X and Y
2x – 3y = 7
5x + y = 9​

Answer 1

Answer:

2x – 3y = 7 … (1)  5x + y = 9 … (2)  Step (1)  From the equation (2)  5x + y = 9  y = -5x + 9  Step (2)  Substitute (3) in (1)  2x – 3(-5x + 9) = 7  2x + 15x – 27 = 7  17x = 7 + 27  17x = 34 x = 34173417 = 2; x = 2 Step (3)  Substitute x = 2 in (3)  y = – 5(2) + 9 = -10 + 9 = -1 

Solution: x = 2; y = -1

Answer 2

Answer:

x

$x = 2 \: y = - 1$