Solve 4u+4v+2w+d+9=0

$$4 u + 4 v + 2 w + d + 9 = 0$$

Solve for d

$$d=-4u-4v-2w-9$$

Solution Steps

Subtract 4u from both sides. Anything subtracted from zero gives its negation.

$$4v+2w+d+9=-4u$$

Subtract 4v from both sides.

$$2w+d+9=-4u-4v$$

Subtract 2w from both sides.

$$d+9=-4u-4v-2w$$

Subtract 9 from both sides.

$$d=-4u-4v-2w-9$$

Solve for u

$$u=-\frac{d}{4}-\frac{w}{2}-v-\frac{9}{4}$$

Steps for Solving Linear Equation

Subtract 4v from both sides. Anything subtracted from zero gives its negation.

$$4u+2w+d+9=-4v$$

Subtract 2w from both sides.

$$4u+d+9=-4v-2w$$

Subtract d from both sides.

$$4u+9=-4v-2w-d$$

Subtract 9 from both sides.

$$4u=-4v-2w-d-9$$

Divide both sides by 4.

$$\frac{4u}{4}=\frac{-4v-2w-d-9}{4}$$

Dividing by 4 undoes the multiplication by 4.

$$u=\frac{-4v-2w-d-9}{4}$$

Divide -4v-2w-d-9 by 4.

$$u=-\frac{d}{4}-\frac{w}{2}-v-\frac{9}{4}$$