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Mathematics for IGCSE & O level - Equations (Section 4 - No. 36)

Write an expression for the total of these lengths, in centimeters: x+6, x, x-1.
3x+5
3x+6
3x-5
x+6

Paskaidrojums

Add all lengths: x+6 + x + x-1 = 3x + 5

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