Algebra

Answer all the questions below and press submit to see how many you got right.

id: 9318

What is the value of the expression $3x$ for $x=5?$

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    12
    18
    35
id: 9425

What is the value of the expression $2$ for $x=2?$

id: 9337

What is the value of the expression $x$ for $x=-3?$