Linear Equation Calculator

Enter equation

a+b=30 4a+2b=80

Solution:

a+b=30
4a+2b=80

a+b=30
4·a+2·b=80

a+b = 30
4a+2b = 80

Pivot: Row 1 ↔ Row 2
4a+2b = 80
a+b = 30

Row 2 - 1/4 · Row 1 → Row 2
4a+2b = 80
0.5b = 10


b = 10/0.5 = 20
a = 80-2b/4 = 80-2 · 20/4 = 10

a = 10
b = 20


Write the equation you want to calculate. The unknown write with one letter a-z, e.g. x, y, z Calculator can playfully cope with a linear equation with one unknown (the simplest case). Write the fractions in the equation with a slash / and use parentheses if necessary. The calculator will not reject a system of linear equations or a quadratic equation.

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