Algebraic Expressions and Equations Flashcards
7 cards from real BECE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Algebraic Expressions and Equations flashcards as text
Simplify the expression 3(2x + 4) − 2(x − 1).
Answer: 4x + 14
Distribute: 6x + 12 − 2x + 2 = 4x + 14.
If 5y − 3 = 2y + 9, what is the value of y?
Answer: 4
5y − 2y = 9 + 3, so 3y = 12, giving y = 4.
Which of the following is a binomial?
Answer: 3x + 7
A binomial has exactly two terms; 3x + 7 has two terms.
Evaluate 2a² − 3b when a = 3 and b = 2.
Answer: 12
2(3²) − 3(2) = 2(9) − 6 = 18 − 6 = 12.
The product of 4x and (x − 3) is:
Answer: 4x² − 12x
4x × x = 4x² and 4x × (−3) = −12x, giving 4x² − 12x.
Solve for n: n/3 + 5 = 11.
Answer: 18
n/3 = 11 − 5 = 6, so n = 18.
What is the coefficient of x in the expression 7 − 4x + x²?
Answer: −4
The term involving x (not x²) is −4x, so its coefficient is −4.