1. $a_1$
2. $a_1$
4. $a_1$

1. $b_1$
2. $b_1$
4. $b_1$

1. $a_2$
2. $a_2$
4. $a_2$

1. $b_2$
2. $b_2$
4. $b_2$

1. $x_i$
2. $x_i$
4. $x_i$

5. $$\color{blue}{\rightarrow}\color{black}\;x_i \;= \;\frac{b_2-b_1}{a_1-a_2}$$

1. $y_i$
2. $y_i$
4. $y_i$

5. $$\color{blue}{\rightarrow}\color{black}\;y_i \;= \;\frac{a_1\cdot b_2-a_2\cdot b_1}{a_1-a_2}$$

→    Back to the complete list of formulas

If the equations are of the form A x + B y + C = 0 calculate first a=-A/B; b=-C/B

Numbers in the form 1/2 or 0.5 or 1.5E3 are accepted: