7(5+5w)=280

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Solution for 7(5+5w)=280 equation: 


w in (-oo:+oo)

7*(5*w+5) = 280 // - 280

7*(5*w+5)-280 = 0

7*(5*w+5)-280 = 0

35*w-245 = 0

35*w-245 = 0

35*w-245 = 0 // + 245

35*w = 245 // : 35

w = 245/35

w = 7

w = 7

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