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Ostrovityanka [42]
2 years ago
10

Solve for x: 3x – 8 = 13 SHOW WORK

Mathematics
2 answers:
Elan Coil [88]2 years ago
6 0
3x-8=13
Add 8 to both sides:
3x=21
Divide 3 to both sides:
x=7
sammy [17]2 years ago
6 0

Answer:

x = 7

Step-by-step explanation:

3x - 8 = 13,

1st, add 8 to the other side. Therefore 8 + 13 which is 21.

2nd, divide 3 from 3x and 3 from 21.

3rd you receive the answer which is 7

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timofeeve [1]

Answer: Choice B

95 - 1080n for any integer n

=================================================

Explanation:

Notice how 1080 is a multiple of 360 since 360*3 = 1080. The other values 1450, 780 and 340 are not multiples of 360. For example 1450/360 = 4.02777 approximately. We need a whole number result to show it is a multiple.

Therefore, choice B shows subtracting off a multiple of 360 from the original angle 95. In my opinion, it would be better to write 95+360n or 95-360n to make it more clear we are adding or subtracting multiples of 360.

Choice B will find coterminal angles, but there will be missing gaps. One missing coterminal angle is 95-360 = -265 degrees. So again, 95-360n is a more complete picture. I can see what your teacher is going for though.

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4 years ago
Click and drag like terms onto each other to simplify fully. -3-7x+3y-3+2y
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- 3 - 7x + 3y - 3 + 2y \\   - 7x + 3y + 2y - 3 - 3 \\   =  >  \:  \: - 7x + 5y - 6

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