babyduckies37
26.07.2021 •
Mathematics
At practice, Joy does twice as many jumping jacks as Bill, and she also does 50 sit-ups. Joy does 112 exercises in total. The equation 2x + 50 = 112 describes this situation. What does the variable x represent?
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Ответ:
2x + 50 = 112
2x = 112 -50
2x = 62
x = 62:2
x= 31
Ответ:
x = 1 and x = -1
Step-by-step explanation:
the solutions here are just where the two lines intersect