Question

4x+3y=21;3x+4y=11 solve the following Algebra

Answer 1

Answer:

(1) <br>

(2) <br> Step 1: Adding both the equations, we get <br>

<br>

<br>

(3) <br> Step 2: Subtracting the equation (2) from the equation (1) <br>

<br>

(4) <br> Step 3: Adding the equations (3) and (4), we get <br>

<br>

<br>

(from (3)) <br>

<br> Substituting

in any of the equations (1), (2), (3) or (4), we get

. <br> The solution of the pair of equations is

.