Solve $$\(5 x=30\)$$ $$\[ x=\text {. } \]$$ (1) (b) Solve $$\(\quad y-7=12\)$$ $$\[ y= \]$$ (1) (c) Simplify $$\(\quad h+h+h+h+h\)$$ (1) (d) Simplify $$\(\quad 5 a+7 f-2 a+4 f\)$$ (2)

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