18+ (-8+f/40+f) * 2
a simplification type sum
please anybody help in simplifying
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Step-by-step explanation:
f(×)=2×-6×+8
substitute 5 in the equation
f(f)=2(5)-6(5)+8
= 28
= 28
Substation 8 in the equation
f(8) = 2 (8)-6 (8) + 8
=40
f(5) -f (8)
28-40
=-12
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