Question

Use substitution to solve for y in the system of equations.
3x - 2y = 33
4x + y =33

Answer 1

solve for y from second equation

Answer 2

5?

Answer 3

second equation :-
4x + y =33

Answer 4

to solve y, u need to isolate y ok

Answer 5

i guess

Answer 6

4x + y =33

subtract 4x both sides

4x + y =33
-4x -4x

Answer 7

wat do u get ?

Answer 8

humm shud be simple :-

4x + y =33
-4x -4x

4x cancels out... leaves u wid :-

y = 33-4x

Answer 9

substitute this y value in first equation :-

3x - 2(33-4x) = 33

see if u can solve x :)

Answer 10

why don't u simply subtract the equations