Solve 81a+9*(6)+c=-2

$$81 a + 9 \times ( 6 ) + c = - 2$$

Solve for a

$$a=\frac{-c-56}{81}$$

Steps for Solving Linear Equation

Multiply 9 and 6 to get 54.

$$81a+54+c=-2$$

Subtract 54 from both sides.

$$81a+c=-2-54$$

Subtract 54 from -2 to get -56.

$$81a+c=-56$$

Subtract c from both sides.

$$81a=-56-c$$

The equation is in standard form.

$$81a=-c-56$$

Divide both sides by 81.

$$\frac{81a}{81}=\frac{-c-56}{81}$$

Dividing by 81 undoes the multiplication by 81.

$$a=\frac{-c-56}{81}$$

Solve for c

$$c=-81a-56$$

Solution Steps

Multiply 9 and 6 to get 54.

$$81a+54+c=-2$$

Subtract 81a from both sides.

$$54+c=-2-81a$$

Subtract 54 from both sides.

$$c=-2-81a-54$$

Subtract 54 from -2 to get -56.

$$c=-56-81a$$