Question

. Solve the system of equations by using matrix inversion method x+2y=5, 2x+3y=6 ​

Answer 1

Answer:

$x + 2y = 5 \\ 2y = 5 - x \\ y = ( \frac{5 - x}{2} )$

from example 2

$2x + 3( \frac{5 - x}{2} ) = 6 \\ \frac{4x + 3(5 - x)}{2} = 6 \\ 4x + 15 - 3x = 6 \times 2 \\ 4x - 3x + 15 = 12 \\ x = 12 - 15 \\ x = - 3$

so

$y = ( \frac{5 - x}{2} ) \\ y = ( \frac{5 - ( - 3)}{2} ) \\ y = ( \frac{5 + 3}{2}) \\ y = \frac{8}{2} \\ y = 4 \: answer$

Answer 2

Answer:

Step-by-step explanation: