x/4=7/q

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Solution for x/4=7/q equation: 


x in (-oo:+oo)

x/4 = 7/q // - 7/q

x/4-(7/q) = 0

x/4-7*q^-1 = 0

1/4*x-7*q^-1 = 0 // + -7*q^-1

1/4*x = -(-7*q^-1) // : 1/4

x = (-(-7*q^-1))/1/4

x = 28*q^-1

x = 28*q^-1

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