3+x/10=7 - solution

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Solution for 3+x/10=7 equation:

x in (-oo:+oo)

x/10+3 = 7 // - 7

x/10-7+3 = 0

1/10*x-4 = 0 // + 4

1/10*x = 4 // : 1/10

x = 4/1/10

x = 40

x = 40

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