X/7+x/4=8/7

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Solution for X/7+x/4=8/7 equation: 


x in (-oo:+oo)

X/7+x/4 = 8/7 // - 8/7

X/7+x/4-(8/7) = 0

X/7+x/4-8/7 = 0

1/7*X+1/4*x-8/7 = 0 // - 1/7*X-8/7

1/4*x = -(1/7*X-8/7) // : 1/4

x = (-(1/7*X-8/7))/1/4

x = 4*(8/7-(1/7*X))

x = 4*(8/7-(1/7*X))

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