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Likurg_2 [28]
2 years ago
15

014pts)

Mathematics
1 answer:
kap26 [50]2 years ago
7 0

Answer:

What does x equal ? <u>3</u><u>0</u>

What does < ABC equal? <u>100</u>

What does < DBC equal? <u>8</u><u>0</u>

Step-by-step explanation:

(3x + 10) + (2x + 20) = 180 \\ 5x + 30 = 180 \\ 5x = 180 - 30 \\ 5x = 150 \\  x =  \frac{150}{5}  \\  \\  x = 30

3x + 10  = 3(30) + 10 = 90 + 10 = 100

2x + 20 = 2(30) + 20 = 60 + 20 = 80

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