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2. Two times a number is subtracted from twenty is eight. What is the number? 3. Elmer has some money. He gave P10 each to his two younger brothers. He has P30 left. How much money he had at first?
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Danylzabalago

2. 6

3. 50

Step-by-step explanation:

2. Let x= the number, so:

20 - 2x = 8

-2x = 8 - 20

-2x = -12

x = -12/-2 = 6

Checking:

20 - 2(6) = 8

20 - 12 = 8

8 = 8

3. Let x = the money he had at first, so:

x - 2(10) = 30

x - 20 = 30

x = 30 + 20

x = 50

Checking:

50 - 2(10) = 30

50 - 20 = 30

30 = 30

Hope it helps.

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