La tabla recoje la fuerza aplicadas sobre un cuerpo y la aceleraciones que este adquiere en cada caso representa gráficamente los valores de la tabla que forma tiene la grafica determina el valor de la masa de este cuerpo

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

X- intercept ( 0,12) y-intercept (-6,0)