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Alisiya [41]
3 years ago
9

HELP!! WILL GIVE BRAINLIST!!

Mathematics
2 answers:
Sphinxa [80]3 years ago
8 0
That is what I found

sergij07 [2.7K]3 years ago
4 0

Answer:

str + stu = 180 \\ 180 - 20 = 4x \\ 160 = 4x \\ x = 40

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