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Which method is used in elimination to find the solutions of a - b = 9 and a + b = 5? ​

Sagot :

The substitution method is used in elimination to find the solution to the equation.

What is the system of two equations?

A set of two linear equations with two variables is called a system of linear equations. They create a system of linear equations when evaluated collectively.

The given equation in the problem is;

Equation P: a - b = 9

Equation Q: a+b=5

The value obtained from the equation P is;

a - b = 9

a=b+9

Substitute the value in the equation Q;

a+b=5

b+9+b=5

2b=9-5

b=2

The value of a is;

a-b=9

a-2=9

a=9+2

a=11

Hence the value of a and b will be 11 and 2.

To learn more about the system of two equations, refer to the link;

https://brainly.com/question/21620502

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