Question

Could someone help me? f(x)=2x+1 and g(x)=-5x+2 when x=3

Answer 1

f(3)=7

Answer 2

f(3)=2(3)+1 Write out your equation with 3 as x.
f(3)=6+1 Solve.
f(3)=7
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g(3)=-5(3)+2 Write out your equation with 3 as x.
g(3)=-15+2 Solve.
g(3)= -13