Advanced Mathematics Primary 6 Algebra

Solve 4y − 3 = 2y + 9.

A 6
B 3
C 4
D 12
Show Worked Solution

Worked Solution

Step 1: Move all y terms to the left: 4y − 2y = 9 + 3. Step 2: Simplify: 2y = 12. Step 3: Divide both sides by 2: y = 6. Verify: LHS = 4(6) − 3 = 21. RHS = 2(6) + 9 = 21. ✓ Answer: y = 6.

Correct answer: 6

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