Question

Solve the following linear equations using method of Cramer's Rule :
2ax + 3by = a + 2b
3ax + 2by = 2a + b​

Answer 1

Step-by-step explanation:

$2a \times 2b \: - 3a \times 3b \: = d$

$(a + 2b) \times 2b \: -(2a + b) \times 3b \: = dx$

$2a \times (2a + b) - 3a + (a + 2b) = dy$

By Cramer's rule,

x = dx÷d

y = dy÷d