13=x/4-7

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Solution for 13=x/4-7 equation: 


x in (-oo:+oo)

13 = x/4-7 // - x/4-7

7-(x/4)+13 = 0

20-1/4*x = 0 // - 20

-1/4*x = -20 // : -1/4

x = -20/(-1/4)

x = 80

x = 80

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