Question

f) Find the values of x and y if (3x - 1) + (√3 + 2y)i = 5.​

Answer 1

Answer:

x=2 y =√3/2

Step-by-step explanation:

3x-1=6 3x=6 x=2 √3+2y =0 y=-

√3 /2

Answer 2

Answer:

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Class 12

>>Applied Mathematics

>>Linear Equations

>>Solving a Pair of Linear Equations - Elimination Method

>>If 3x - 2y = 5 and 3y - 2x = 3 then find

Question

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If 3x−2y=5 and 3y−2x=3 then find the value of (x+y).

Medium

Solution

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3x−2y=5............ (1)

3y−2x=3

−2x+3y=3

Multiply (1) by 2 & eq (2) by 3

6x−4y=10..........(3)

−6x+9y=19..........(4)

_______________

Adding eqn (3) and (4), we get

6x−4y=10

−6x+9y=19

___________

5y=1

y= 1/5

Putting the value in

6x− 4/5 =10

6x=10+ 4/5 = 54/5

x= 54/6×5 = 9/5

x= 9/5

Now x+y= 9/5+1/5 =

10/5

=2$$

x+y=2