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Trigonometric equations with degrees

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Solve the following equation in degrees, for $x$ in the range $0^\\circ\\leq x\\leq720^\\circ$.

\n

\\[\\var{a+1}\\cos(x-\\var{b})=\\var{a-2}\\]

\n

Give your final answers correct to the nearest degree in ascending order.

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$\\cos(x-\\var{b})=$ [[0]]

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$x-\\var{b}=$ [[0]]$^\\circ$, [[1]]$^\\circ$, [[2]]$^\\circ$ or [[3]]$^\\circ$

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