Question

Solve the following pairs of simultaneous equation. equation 1: 4x - 4y = 2 equation 2: 7x + 2y = 17

Answer 1

Step-by-step explanation:

1..

2( 2x-2y) = 2

2x-2y = 1....... eq.1...

eq 1+eq2

( eq 2 is 7x+2y=17 )

We get

2x - 2y = 1

7x+ 2 y =17

__________

9 x= 18

X= 2..

hence y= 3/2...

Hope it's helpful...

Answer 2

Answer:

4x-4y=2

by dividing by 2

2x-2y=1 》eq1

7x+2y=17 》eq2

by elimination method

2x+7x=1+17

9x=18

x=2

let's make y the subject in eq1

therefore y=4x-2/4

y=8-2/4

therefore y=3/2