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Please help!! Algebra!!

Please Help Algebra class=

Sagot :

Answer:  6x - 3

Work Shown:

y = expression for the missing side

perimeter = 9x - 1

side1+side2+side3 = perimeter

(2x+4) + (x-2) + (y) = 9x - 1

3x+2 +y = 9x-1

y = 9x-1-3x-2

y = 6x - 3