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Solve each equation.

1. $4x+4(2x-1)=20$

3. $5x+15=10(x-3)$

5. $3x-4=4(3x-19)$
\begin{center}
$7.\ -0.4x-6(3x-\ 2) =48.8p$
\end{center}
$9.2x+1=7-10x$

$1\mathrm{t}.\ 4x-10=3(x+2)$

\noindent
13. $5x+10(4x+3)=15$

\noindent
$15.\ -4x+7=5(x+2)$

\noindent
17. $5x-15=4x+3$

\noindent
19. $2(2x+2)+x=3x-4$

\noindent
21. $2x+4(3x+6)=12$

2. $4x+20=5(x+3)$

4. $2x+5=17$

6. 3 $(2x-\ 4) =3x-5(x+1)$

\noindent
$\epsilon.\ 2(x+3)=5x+15-$

\noindent
10. $5x-3=15-4x$

\noindent
12. $6(x+2)=5x-9$

\noindent
14. $2(x+3)=5(x-3)$

\noindent
$16.7x=2(x-3)$

\noindent
1S. $5(x+0.5)=-1.5(x+3x)$

\noindent
$20.2x=3(x+2)$

\noindent
22. $2x+2(2x-3)=-3$

\noindent
Solve each literal equation for the indicated variable.

\noindent
23. $L\times W\times D=V$, for $W$

\noindent
24. $C=2\pi r$, for $r$

\noindent
25. $V_{1}P_{1}=V_{2}P_{2}$, for $P_{1}$

\noindent
26. $q=q_{p}\times D\times \mathrm{Q}$, {\it fo} $r q_{p}$

\noindent
$27.\ T=T_{o}-a(z-z_{0}))$ for $a$

\noindent
$28.A=(a+b)h$, for $h$

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