f(x)=x-5
h(x)=3x-4
To find h(x)-f(x), simply replace the values:
h(x)-f(x)= (3x-4)-(x-5)
Distribute the negative sign in the second parenthesis:
h(x)-f(x)= 3x-4 -x+5
Add and subtract like terms:
h(x)-f(x)= 3x-x-4+5
h(x)-f(x)= 2x+1
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