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roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many STUDENT tickets did roberta sell?

S-10=A
S+A=50

A=50-S

S-10=50-S
solve for S

roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many STUDENT tickets did roberta sell

according to urs equation
S-10=50-s
2s=60
s=60/2
s=30

check
S-10=A
WHERE S=30
30-10=A
A=20
HOW S+A=50
30+A=50
A=50-30
A=20

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