a) [latex]P=abx[/latex] [latex]abx=P /:ab[/latex] [latex]x=frac{P}{ab}[/latex] b) [latex]R=frac{ax}{b}[/latex] [latex]ax=bR /:a[/latex] [latex]x=frac{bR}{a}[/latex] c) [latex]S=frac{a}{bx}[/latex] [latex]bx=frac{a}{S} /:b[/latex] [latex]x=frac{a}{bS}[/latex] d) [latex]T=frac{1}{abx}[/latex] [latex]abx=frac{1}{T} /:ab[/latex] [latex]x=frac{1}{abT}[/latex] e) [latex]y=2t-3x[/latex] [latex]3x=2t-y /:3[/latex] [latex]x=frac{2t-y}{3}[/latex] f) [latex]y=2(x-1)[/latex] [latex]2x-2=y[/latex] [latex]2x=y+2 /:2[/latex] [latex]x=frac{y+2}{2}[/latex] g) [latex]y=frac{x-1}{2} /cdot2[/latex] [latex]x-1=2y[/latex] [latex]x=2y+1[/latex] h) [latex]y=frac{1}{x-1}[/latex] [latex]x-1=frac{1}{y}[/latex] [latex]x=frac{1}{y}+1[/latex] i) [latex]P=frac{1}{3}(a^2+2ax) /cdot3[/latex] [latex]a^2+2ax=3P[/latex] [latex]2ax=3P-a^2 /:2a[/latex] [latex]x=frac{3P-a^2}{2a}[/latex] =============== [latex]E=mc^2 /:c^2[/latex] [latex]m=frac{E}{c^2}[/latex]
