Solving Algebraic Equations Flashcards

6 cards from real IBEW practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Solving Algebraic Equations flashcards as text

Solve for x: 6x - (2x - 4) = 20
Answer: x = 4
6x - 2x + 4 = 20 → 4x = 16 → x = 4.
Solve the system: x + y = 10 and x - y = 4. What is x?
Answer: 7
Add equations: 2x = 14 → x = 7.
Solve: 2x² - 8 = 0
Answer: x = ±2
2x² = 8 → x² = 4 → x = ±2.
Solve for x: 0.5x + 3 = 8
Answer: x = 10
0.5x = 5 → x = 10.
A circuit has resistance R ohms. If V = IR and V = 120 volts and I = 8 amperes, solve for R.
Answer: 15 Ω
R = V/I = 120/8 = 15 Ω.
Solve: 4(x - 2) = 2(x + 3)
Answer: x = 7
4x - 8 = 2x + 6 → 2x = 14 → x = 7.