UPSKILL MATH PLUS

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1. If \(f(x) = 2x + 3\), \(g(x) = 1 - 2x)\) and \(h(x) = 3x\). Prove that \(f \circ (g \circ h) = (f \circ g) \circ h\).
 
 
2. Find \(x\) if \(gff(x) = fgg(x)\), given \(f(x) = 3x + 1\) and \(g(x) = x + 3\).
 
The value of \(x\) \(=\)
 
Important!
This is a self-assessment task. Solve this question and assess the solution steps after the completion of the test on your own.