Question

pls send answer
solve by elimination method​

Answer 1

Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. ...

Step 2: Subtract the second equation from the first.

Step 3: Solve this new equation for y.

Step 4: Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.

Answer 2

$5x - 3y = 2 \: \: \: \: \: \: ...(1) \\ 4x + 7y = - 3 \: \: \: \: \: \: ...(2)$

Multiply equation (1) by 7 and equation (2) by 3 to make the coefficient of y same.

So,

$35x - 21y = 14 \: \: \: \: \: \: ...(3) \\ 12x + 21y = - 9 \: \: \: \: \: \: ...(4)$

Solving equation (3) and (4)

$35x - 21y = 14 \\ 12x + 21y = - 9 \\ - - - - - - - - \\ 47x \: = \: 5 \\ x = \frac{5}{47}$

From (1)

$5 \times \frac{5}{47} - 3y = 2 \\ 3y = \frac{25}{47} - 2 \\ y = \frac{25 - 94}{47 \times 3} \\ y = \frac{ - 69}{47 \times 3} = - \frac{23}{47}$