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Roberto has 20 crayons. 12 crayons are red. The rest are blue or yellow. He has two more blue crayons than yellow. How many yellow crayons does he have?
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Roberto has 20 crayons. 12 crayons are red. The rest are blue or yellow. He has two more blue crayons than yellow. How many yellow crayons does he have?
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Jun 27, 2018
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Roberto has 20 crayons. 12 crayons are red. The rest are blue or yellow. He has two more blue crayons than yellow. How many yellow crayons does he have?
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Cedias
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12=Red
8=blue or yellow
Blue is b
Yellow is y
What two numbers add up to 8 but the difference is 2.
5 and 3!
He would have 3 yellow crayons
Y-2=b
Menno Smits
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Jun 29, 2018
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Menno Smits
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20 - 12 = 8
He has 8 blue and yellow crayons altogether.
Yellow = x
Blue = 2 + x
2 + x + x = 8
2 + 2x = 8
Subtract 2 to both sides
2x = 6
Divide 2 to both sides
x = 3.
He has 3 yellow crayons.
Sarnesjo
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Jul 4, 2018
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Sarnesjo
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