Solve for a 4a+2b=20 15a+5b=60

$4 a + 2 b = 20$ $15 a + 5 b = 60$

Step 1

The simplified system is the arbitrary solution of the original system of equations.

$b = 10 - 2 a$

$b = 12 - 3 a$

Step 2

Simplify the right side.

Reorder $10$ and $- 2 a$ .

$b = - 2 a + 10$

$b = 12 - 3 a$

$b = - 2 a + 10$

$b = 12 - 3 a$

Step 3

Simplify the right side.

Reorder $12$ and $- 3 a$ .

$b = - 3 a + 12$

$b = - 2 a + 10$

$b = - 3 a + 12$

$b = - 2 a + 10$