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docker41 [41]
3 years ago
13

100-y+10=90 please help

Mathematics
2 answers:
Kitty [74]3 years ago
7 0
If your solving for for y, then simplify both sides of the equation, then isolating the variable. 
y = 20
Marat540 [252]3 years ago
6 0
Y equals 20 because what is 100 - 20 is 80 so you have a year and then you at 10 on today and got 90 so y equals 20
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