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Mathematics for IGCSE & O level - Equations (Section 3 - No. 18)

Solve: 2(x - 1) + 3 = 9
4
3
5
7

Explicaţie

Expand and simplify: 2x -2 + 3 = 9. 2x + 1 = 9. 2x = 8. x = 4.

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