Question

What is the value of D for solving simultaneous equations x + y = 3 and 3x - 2y – 4 = 0

by Cramer’s rule.

A) -1 B ) 1 C ) 5 D ) - 5​

Answer 1

Step-by-step explanation:

x + y = 3

ie x + y -3=0 .....(equation 1)

3x - 2y – 4 = 0 ......(equation 2)

D= 1 1

3 -2

1×(-2) -1×3 (-2)(-3) = -5

so -5 is the answer