-5x-1/5+7x=-21/5

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Solution for -5x-1/5+7x=-21/5 equation: 


x in (-oo:+oo)

7*x-5*x-(1/5) = -21/5 // + -21/5

7*x-5*x-(1/5)-(-21/5) = 0

7*x-5*x-1/5+21/5 = 0

2*x+4 = 0 // - 4

2*x = -4 // : 2

x = -4/2

x = -2

x = -2

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