Solve the simultaneous equations.

x = 1.5  ; y = -0.5

Step-by-step explanation:

2x + 4y = 1  (i)

3x - 5y =7 (ii)

(i) * 5      10x + 20y = 5

(ii)*4       12x  -20y = 28      

add,         22x        = 33          { here y will be eliminated}

                           x = 33/22 = 3/2

                           x = 1.5

Put the value of x in equation (i)

2*1.5 + 4y = 1

3 + 4y = 1

4y = 1-3

4y = -2

y  = -2/4 = -1/2

y = -0.5

take it another

addition

step-by-step explanation: