Question

solve given equation by elimination method:3x+4y=10,2x-2y=2​

Answer 1

Answer:

Solving 3x + 4y =10 and 2x - 2y =2  by elimination method:

Let 3x + 4y =10    ...(1) and

2x - 2y =2   ...(2)

Multiply Equation (2) by 2 to make the coefficients of y equal.

Then we get the equation: 4x – 4y = 4   ... (3)                          

Add  Equation (1) and (2) to eliminate y, because the coefficients of y are the same.

So, we get

(3x + 4x) + (4y – 4y) = 10 + 4

7x = 14

x = 2

Substituting this value of x in (1), we get

3x + 4y =10  

3(2) + 4y =10

4y = 4

y = 1

Answer 2

Answer:

3x+4y=10------>12x-2y=2-------->2 3x+4y=102×1=4x-4y=4 ______ 7x=14 ...

Step-by-step explanation: