5. Rewriting Equations and Formulas
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How many cases do you have after you remove the absolute value?
Solutions: y=7 and y=1
Number Line:
lc 3y-12 ≥ 0:3y-12 = 9 & (I) 3y-12 < 0:3y-12 = - 9 & (II)
(I), (II): LHS+12=RHS+12
(I), (II): .LHS /3.=.RHS /3.