keke6361
15.04.2021 •
Mathematics
Given ABC, what is the value of x? Write the answer as a decimal number
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Ответ:
26, 20, 40
Step-by-step explanation:
x + y + z = 86
x = y + 6
z = 2y
now we put the 2. and 3. equation into the first :
y + 6 + y + 2y = 86
4y = 80
y = 20
z = 2y = 2×20 = 40
x = y + 6 = 20 + 6 = 26