Find the solution: -9(2x - 1) = 45 x = -4 x =23/-9 x = -2 x = 3

Mathematics

2 answers:

Aleks [24]3 years ago

7 0

Answer:

x=-2

Step-by-step explanation:

valkas [14]3 years ago

6 0

X= -2
Use distributive property and then subtract from both sides. Then divide by x and you get about -2 but round

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Alex_Xolod [135]

Answer: The total amount the water change was -28 gallons by the end of the week OR The total amount the water changed decreased 28 gallons by the end of the week. Depending on how you want to word it.

Hope this helps!

Step-by-step explanation:

Create you equation:

x = the total amount the water changed

d = the amount of days

x = -4d

Insert the known information into the equation and solve:

x = -4d

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2 years ago

USLUIT il Find x. 45° 30°

IceJOKER [234]

Answer:

111°

Step-by-step explanation:

All these are parallel lines, so the 36° angle is equal to the 36° angle inside the big triangle because they are vertically opposite.

Ignore the line cutting between 45° and the 30° and consider it as one triangle
Add them to get 75°
Now you have two known angles 75° and 36°
To get angle x add 75° and 36° to get 111°
Because x° is an exterior angle and exterior angles equal to the sum of interior angles opposite it inside the triangle.