Linear Equations in One Variable Flashcards
7 cards from real Bluebook SAT Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Linear Equations in One Variable flashcards as text
If 4x + 5 = 2x + 17, what is the value of x²?
Answer: 36
4x − 2x = 17 − 5 → 2x = 12 → x = 6; x² = 36.
A nurse gives patients 0.5 mg of medication per pound of body weight. A patient received 87.5 mg. How much does the patient weigh in pounds?
Answer: 175
0.5w = 87.5 → w = 175.
Solve for m: 7 − 4m = 3m − 7
Answer: 2
7 + 7 = 3m + 4m → 14 = 7m → m = 2.
A subscription service costs $8 per month after a one-time $20 registration fee. Jasmine has paid $68 in total. For how many months has she subscribed?
Answer: 7
8m + 20 = 68 → 8m = 48 → m = 6.
If the equation kx − 4 = 2x + 8 has the solution x = 6, what is the value of k?
Answer: 4
6k − 4 = 12 + 8 → 6k = 24 → k = 4.
Solve for x: 2(x − 3) + 5 = 3(x − 1) − 2
Answer: 4
2x − 6 + 5 = 3x − 3 − 2 → 2x − 1 = 3x − 5 → −x = −4 → x = 4.
On a number line, point P is at position 3x − 1 and point Q is at position x + 9. If P and Q represent the same location, what is the position of the point?
Answer: 14
3x − 1 = x + 9 → 2x = 10 → x = 5; position = x + 9 = 14.