C, because when you add 45 on both sides, and then after that when you have to subtract 15 in both sides, you get 0 = 120.
Answer:
i think it A
Step-by-step explanation:
9514 1404 393
Answer:
a, c, b
Step-by-step explanation:
Collect terms, subtract the constant, divide by the y-coefficient.
(a) 4y + (y - 1) = 29 ⇒ y = 6
(c) (2y + 3) - 4 = 9 ⇒ y = 5
(b) 4y - y + 1 = 13 ⇒ y = 4 . . . . . this equation is not what you have written
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<em>Additional comment</em>
The second equation suffers from a typo, so your answer may vary.
Answer:
12 cards is the correct answer of this questions.
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