7a-21/6a-18 - solution

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Solution for 7a-21/6a-18 equation:

a in (-oo:+oo)

7*a-((21/6)*a)-18 = 0

7*a+(-7/2)*a-18 = 0

7/2*a-18 = 0 // + 18

7/2*a = 18 // : 7/2

a = 18/7/2

a = 36/7

a = 36/7

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