Suppose that the functions s and t are defined for all real numbers x as follows. s (x)=x+3 t(x)=4x-6 Write the expressions for (t+s)(x) and (t-s)(x) and evaluate (t's)(1). (++)(+) = [0 %3D (1-)(*) = D %3D (rs)(1) = 1 %3D

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