SAT Linear equations in one variable Practice Question 5 (Easy)

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Question bank / Linear equations in one variable

Math · AlgebraEasy

What value of $x$ is the solution to the equation $7x + 2 = 3x + 18$ ?

$1.6$

$4$

$5$

$16$

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Answer: B

Subtract $3x$ from both sides: $4x + 2 = 18$ . Subtract 2: $4x = 16$ . Divide by 4: $x = 4$ .

Choice C results from adding 2 to 18 instead of subtracting it, giving $4x = 20$ .

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