Solve for a 9a+3b=30 8a+4b=28

$9 a + 3 b = 30$ $8 a + 4 b = 28$

Step 1

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

$b = 10 - 3 a$

$b = 7 - 2 a$

Step 2

Simplify the right side.

Reorder $10$ and $- 3 a$ .

$b = - 3 a + 10$

$b = 7 - 2 a$

$b = - 3 a + 10$

$b = 7 - 2 a$

Step 3

Simplify the right side.

Reorder $7$ and $- 2 a$ .

$b = - 2 a + 7$

$b = - 3 a + 10$

$b = - 2 a + 7$

$b = - 3 a + 10$