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1 year ago

014pts)

Mathematics

1 answer:

kap26 [50]1 year ago

7 0

Answer:

What does x equal ? 30

What does < ABC equal? 100

What does < DBC equal? 80

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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