Linear Equations and Inequalities Flashcards
7 cards from real ALEKS 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 and Inequalities flashcards as text
What is the solution to 2x + 5 = 13?
Answer: x = 4
Subtracting 5 from both sides gives 2x = 8, and dividing by 2 gives x = 4.
Solve for x: 3x − 7 = 2x + 5
Answer: x = 12
Subtracting 2x from both sides gives x − 7 = 5, and adding 7 to both sides gives x = 12.
Which value satisfies −4x + 8 = 0?
Answer: x = 2
Adding 4x to both sides gives 8 = 4x, and dividing both sides by 4 gives x = 2.
What is the slope of the line y = 3x − 5?
Answer: 3
In slope-intercept form y = mx + b, the coefficient of x is the slope, so m = 3.
Solve: x/4 + 3 = 7
Answer: x = 16
Subtracting 3 from both sides gives x/4 = 4, and multiplying both sides by 4 gives x = 16.
Which inequality represents 'x is at most 5'?
Answer: x ≤ 5
'At most 5' means x cannot exceed 5, including 5 itself, which is written as x ≤ 5.
If 5x = 35, what is x?
Answer: 7
Dividing both sides by 5 gives x = 35 ÷ 5 = 7.