KetzalyL428283 KetzalyL428283

25-10-2022
Mathematics

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rectangle perimeter ; 36 unitswidth; xlength ; 4x - 2solve for x

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MeekaF535943 MeekaF535943

25-10-2022

Perimeter = 36 units

width = x

length = 4x - 2

Equation of perimeter = 2width + 2length

Substitution

36 = 2(x) + 2(4x - 2)

Expanding

36 = 2x + 8x - 4

36 = 10x - 4

36 + 4 = 10x

40 = 10x

x = 40/10

x = 4

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