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Linear equations in one variable SAT question

Math · Algebra · Easy · Answer it here, explanation included.

If $x = 7$ , what is the value of $x + 20$ ?

ExplanationShow

Choice C is correct. It’s given that $x = 7$ . Substituting $7$ for $x$ into the given expression $x + 20$ yields $7 + 20$ , which is equivalent to $27$ .

Choice A is incorrect. This is the value of $x + 6$ .

Choice B is incorrect. This is the value of $x + 13$ .

Choice D is incorrect. This is the value of $x + 27$ .

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