Answer:
2X–3 =15
2X=15+3
2X=18
X=18/2
X= 9
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18
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3(5^6)
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f(3) = - 18
To evaluate f(3) , substitute x = 3 into f(x) , that is
f(3) = - 4(3 + 1) - 2 = - 4(4) - 2 = - 16 - 2 = - 18
90-60+50-65=15
$15 in her account