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sally is 1 year older than3 times the age of joe. chris is 5 years younger than 6 times the age of joe. if sally and chris are the same age, how old is joe?
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Jul 22, 2019
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sally is 1 year older than3 times the age of joe. chris is 5 years younger than 6 times the age of joe. if sally and chris are the same age, how old is joe?
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middle-school
Shindigo
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6x - 5 = 3x + 1
-3x -3x
————————
3x - 5 = 1
+ 5 + 5
————————
3x = 6
—— —
3 3
x = 2
Joe is 2 years old.
~~~~~~~~~~~~~~~~
Check
6(2) - 5 = 3(2) + 1
12 - 5 = 6 + 1
✔️
7 = 7
Bo
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Jul 29, 2019
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Bo
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