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Andrei [34K]
3 years ago
6

X = a) 20 b) 40 c) 80

Mathematics
2 answers:
Shalnov [3]3 years ago
7 0
x =  \frac{1}{2} (x + 60 - 20)

x =  \frac{1}{2} (x + 40)

x =  \frac{1}{2}x + 20

x - \frac{1}{2}x = 20

\frac{1}{2}x = 20

x = 20 \times 2

x = 40
Svetlanka [38]3 years ago
5 0

The answer is b) 40

Have a great day!

<u>-Fishtank</u>

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