Answer:
2
Step-by-step explanation:
2Y = 10
10 - 6 = 4
x = 2
4/2 = 2
A variable is a letter that replaces an unknown number.
She swims 12 laps on Monday.
Step-by-step explanation:
Total laps = 51 laps
Laps on Saturday = 15 laps
Let,
x be the number of laps on Monday, Wednesday and Friday each.
According to given statement;
Monday+Wednesday+Friday+Saturday = 51
Dividing both sides by 3
She swims 12 laps on Monday.
Keywords: addition, division
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