X/2-9=x/7

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Solution for X/2-9=x/7 equation: 


x in (-oo:+oo)

X/2-9 = x/7 // - x/7

X/2-(x/7)-9 = 0

1/2*X-1/7*x-9 = 0 // - 1/2*X-9

-1/7*x = -(1/2*X-9) // : -1/7

x = (-(1/2*X-9))/(-1/7)

x = -7*(9-(1/2*X))

x = -7*(9-(1/2*X))

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