7(4+2d)=154

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Solution for 7(4+2d)=154 equation: 


d in (-oo:+oo)

7*(2*d+4) = 154 // - 154

7*(2*d+4)-154 = 0

7*(2*d+4)-154 = 0

14*d-126 = 0

14*d-126 = 0

14*d-126 = 0 // + 126

14*d = 126 // : 14

d = 126/14

d = 9

d = 9

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