7x/4=-21 - solution

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Solution for 7x/4=-21 equation:

x in (-oo:+oo)

(7*x)/4 = -21 // + 21

(7*x)/4+21 = 0

7/4*x+21 = 0 // - 21

7/4*x = -21 // : 7/4

x = -21/7/4

x = -12

x = -12

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