gesic2003
20.09.2020 •
Mathematics
How is the solution of the related equation 2x+1=-3 related to the solutions of the inequality 2x+1>-3?
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Ответ:
56
Step-by-step explanation:
Let Davids's age = d
Let Marie's age = m
First part of the question tells us: d=4+(3m)
Second part of the question tells us: d=m+38
Sub in 'm+38' for d:
m+38=4+3m
3m-m=38-4
2m=36
m=18
d=m+38
=18+38
=56