1e graads vergelijkingen

e.g:
3x  +  7y = 12
12x - 11y =  2

x + y =
x + y =

x: y:

explanation:

Kramer's rule

for:
ax + by = c
dx + ey = f

the following can be applied:

x = (c * e - b * f ) / (a * e - b * d)
y = (a * f - e * d) / (a * e - b * d)

This is known as Kramer's Rule