Expressions and Equations Flashcards
7 cards from real PARCC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Expressions and Equations flashcards as text
Solve for x: 2x + 5 = 17
Answer: x = 6
Subtract 5 from both sides to get 2x = 12, then divide by 2: x = 6.
Simplify: 4a + 7b − 2a + 3b
Answer: 2a + 10b
Combine like terms: (4a − 2a) + (7b + 3b) = 2a + 10b.
A gym charges a $25 sign-up fee plus $15 per month. Which equation gives the total cost C for m months?
Answer: C = 15m + 25
The fixed fee is $25 and the variable cost is $15 per month, so C = 15m + 25.
Which value of x makes the equation 4x − 3 = 13 true?
Answer: x = 4
Adding 3 to both sides gives 4x = 16, and dividing by 4 gives x = 4.
Which of the following is NOT a like term with 6x²?
Answer: 6x
Like terms must have the same variable and exponent; 6x has a different exponent (1) than 6x² (2), so it is not a like term.
Solve the inequality: 2x + 4 < 12
Answer: x < 4
Subtracting 4: 2x < 8; dividing by 2: x < 4.
If 5 + n/3 = 8, what is the value of n?
Answer: n = 9
Subtracting 5 from both sides gives n/3 = 3, then multiplying both sides by 3 gives n = 9.