If x is 4 then 34.5x evaluates to 34.5 times 4 = 138
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The answer is x = 5. There is nothing to evaluate there!
Evaluate the expression below when x = 2.3x2-2x+4
13
Take 3 and substitute into the expression given to you but not mentioned in the question here and evaluate the expression. "Sub and Solve" I say.
X = 7 9x - 2x = 49