Question

Solve the equations for x and y using cross multiplication method.

2 x + 3y − 7 = 0

3 x + 4y = 10​

Answer 1

Answer:

Find the value of x and y by using the using cross-multiplication method: 3x + 4y – 17 = 0. 4x – 3y – 6 = 0. Solution: Two given

Answer 2

Step-by-step explanation:

2x+3y-7=0 ...... Rearranging

2x+3y=7 ....(1)

3x+4y=10 ....(2)

Multiplying equ (1) by 4 & equ (2) by 3 we get,

8x+12y=28 .....(3)

9x+12y=30 ......(4)

Subtracting equ (4) & equ (3)

9x+12y=30

- 8x+12y=28

x+0y=2

x=2

Substituting the value of x=2 in equ (1) we get,

2x+3y=7

2(2)+3y=7

4+3y=7

3y=7-4

3y=3

y= 3

3

y=1

The solution is (x,y)=(2,1).

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