Question if-wha
1.2 Linear Equations in One Variable - Single-variable equations (multi-step)
0:00
If 
, what is the value of 
?
A.
2
B.
C.
D.
If , what is the value of ?
Hard-difficulty · SAT Math · Linear Equations in One Variable — Single-variable equations (multi-step). Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice D is correct. Multiplying the given equation by 2 on each side yields 
. Applying the distributive property, this equation can be rewritten as 
, or 
.
Choices A, B, and C are incorrect and may result from calculation errors in solving the given equation for 
and then substituting that value of x in the expression .
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