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The equation 9+3a-4-=?a+20-15 has infinitely many solutions. What value should be placed in the box?
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3 votes
The equation 9+3a-4-=?a+20-15 has infinitely many solutions. What value should be placed in the box?

User Zzzz
by
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1 Answer

6 votes

Answer:

9 + 3a -4 - = a +20-15

3a - a = 20 -15+4-9

2a = 24 - 24

2a = 0

User Marat Tanalin
by
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