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Aptitude Test Solving Algebraic Equations Questions and Answers Flashcards
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Solve for x: 5x - 3 = 22
Answer: x = 5
5x = 22 + 3 = 25. x = 25/5 = 5.
Solve: 3(x + 4) = 21
Answer: x = 3
Distribute: 3x + 12 = 21. 3x = 9. x = 3.
Solve for y: 4y - 7 = 2y + 9
Answer: y = 8
4y - 2y = 9 + 7. 2y = 16. y = 8.
If 2x + 5 = 3x - 1, what is x?
Answer: x = 6
5 + 1 = 3x - 2x. 6 = x. So x = 6.
Solve: x/4 + 3 = 7
Answer: x = 16
x/4 = 7 - 3 = 4. x = 4 × 4 = 16.
Solve: 2(3x - 1) = 4(x + 3)
Answer: x = 7
6x - 2 = 4x + 12. 2x = 14. x = 7.