solve the system using the elimination method twice
7x - 4y = 10
6x + 3y = 8

Question

solve the system using the elimination method twice
7x - 4y = 10
6x + 3y = 8

anonymous · Answer

write the first equation in terms of x
$$x= (4y +10)/7$$

plug it into the x of the second equation

$$6(4/7y + 10/7) + 3y = 8$$

solve that equation for y and you will get 

$$y = -4/45$$

plug that into the second equation and solve it for x 

$$6x + 3(-4/45) = 8$$

you get 

$$x = 62/45 $$

your answers are 

$$y = -4/45, x = 62/45$$

if you plug these into both the equations they work