Question

4x= 2y + 38; 2 - 3y=x

Simultaneous equation please help

Answer 1

x = 59/7, y = -15/7

Explanation:

4x= 2y + 38;

2 - 3y=x

We can substitute for x in the first equation since the second equation is solved for x

4(2-3y) = 2y+38

Distribute

8 - 12y = 2y+38

Add 12y to each side

8-12y+12y = 2y+12y+38

8 = 14y+38

Subtract 38 from each side

-30 = 14y

Divide by 14

-30/14 = y

-15/7 = y

Now solve for x

2 - 3y = x

2 - 3*-15/7 = x

2 +45/7 = x

14/7 + 45/7 = x

59/7 =x