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akch2002
akch2002, M.Tech.
Category: Pre-Calculus
Satisfied Customers: 4847
Experience:  Maths expert
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How do I solve s(t(x)) when it gives me x = 7. s = 1/2x +3 t

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How do I solve s(t(x)) when it gives me x = 7.s = 1/2x +3
t = 2x-6

s(x)=(1/2)x+3

s[t(x)]=(1/2)t(x)+3

=(1/2)(2x-6)+3

=x-3+3=x

s(7)=7

Customer: replied 13 days ago.
I only change for X after the whole equation, not before?

Yes

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