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3/4 y+ 1/3(y-4) =y+1 / 7
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2 votes
3/4 y+ 1/3(y-4) =y+1 / 7

User Simplycurious
by
8.2k points

2 Answers

3 votes
3/4y+⅓y-⁴/³=y+¹/7
13/12y-4/3=y+1/7
13/12y-y=1/7+4/3
¹/12y=31/12
y=31
User Holmesal
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8.9k points
3 votes
³/₄y + ¹/₃(y - 4) = y + ¹/₇
³/₄y + ¹/₃(y) + ¹/₃(-4) = y + ¹/₇
³/₄y + ¹/₃y + (-1¹/₃) = y + ¹/₇
³/₄y + ¹/₃y - 1¹/₃ = y + ¹/₇
1¹/₁₂y - 1¹/₃ = y + ¹/₇
- y - y
¹/₁₂y - 1¹/₃ = ¹/₇
+ 1¹/₃ + 1¹/₃
 12 · ¹/₁₂y = 1¹⁰/₂₁ · 12
y = 17⁵/₇
User Fuentesjr
by
8.3k points
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