Question

2x + 3y = 4; 7x - 5y = 2

Answer 1

Answer:

Dx=-26 and D=-31

Step-by-step explanation:

The given equations are 2x+3y=4 and 7x-5y=2, using the crammer's rule,

D=determinant

D=-10-21

D=-31

And, Dx= determinant

Dx= -20-6=-26.

Hence, Dx=-26 and D=-31

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Answer 2

Step-by-step explanation:

by the method of substitution