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Solve each equation.

$4 x + 4 (2 x - 1) = 20$ $4 x + 20 = 5 (x + 3)$

$5 x + 15 = 10 (x$ -3) $2 x + 5 = 17$

$3 x - 4 = 4 (3 x - 19)$ $3 (2 x - 4) = 3 x - 5 (x + 1)$

$- 0.4 x - 6 (3 x - 2)$ $= 48.8$ 2 $(x + 3) = 5 x + 15$

$2 x + 1 = 7 - 10 x$ $5 x - 3 = 15 - 4 x$

4x $- 10 = 3 (x + 2)$ $6 (x + 2) = 5 x$ -9

$5 x + 10 (4 x + 3) = 15$ $2 (x + 3) = 5 (x$ -3)

$- 4 x + 7 = 5 (x + 2)$ 7x $= 2 (x$ -3)

5x $- 15 = 4 x + 3$ $5 (x + 0.5) = - 1.5 (x + 3 x)$

$2 (2 x + 2) + x = 3 x$ -4 2x $= 3 (x + 2)$

$2 x + 4 (3 x + 6) = 12$ $2 x + 2 (2 x - 3) = - 3$

Solve each literal equation for the indicated variable.

$L \times W \times D = V$ , for $W$

C $= 2 π r$ , for $r$

$V_{1} P_{1} = V_{2} P_{2}$ , for $P_{1}$

q $= q_{p} \times D \times Q$ , for $q_{p}$

T $= T_{o} - a (z - z_{0}))$ for $a$

A $= (a + b) h$ , for $h$