donnafranks2003
11.11.2020 •
Mathematics
Find the missing measures for the rectangle.
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Ответ:
D 10.5 cm; 21 cm
Step-by-step explanation:
Ответ:
x = 1
Step-by-step explanation:
3x - 2 + 4x = 7x + 7 - 9
-2x + 4x = 7x - 3x + 7 - 9
2x = 4x -2
2 = 4x - 2x
2 = 2x
x = 2/2
x = 1