3/4y=-21 - solution

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Solution for 3/4y=-21 equation:

y in (-oo:+oo)

(3/4)*y = -21 // + 21

(3/4)*y+21 = 0

3/4*y+21 = 0 // - 21

3/4*y = -21 // : 3/4

y = -21/3/4

y = -28

y = -28

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