Question

Solve by cross-multiplication method :

2 3 3 1 5; 9 0​

Answer 1

Answer:

Step-by-step explanation:

To solve the equations in a simplified way, we use following table:

Method of Cross Multiplication

xB1C2−B2C1=yC1A2−C2A1=1A1B2−A2B1

Equating one another we find the value of x and y of the given equations.

Let us solve some examples based upon this concept:

1. Solve for ‘x’ and ‘y’:

3x + 2y + 10 = 0, and

4x + 5y + 20 = 0.

Answer 2

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To solve the equations in a simplified way, we use following table:

Method of Cross Multiplication

xB1C2−B2C1=yC1A2−C2A1=1A1B2−A2B1

Equating one another we find the value of x and y of the given equations.

Let us solve some examples based upon this concept:

1. Solve for ‘x’ and ‘y’:

3x + 2y + 10 = 0, and

4x + 5y + 20 = 0.