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Artyom0805 [142]
2 years ago
7

Easy math please help

Mathematics
1 answer:
insens350 [35]2 years ago
4 0

1) False

Adjacent angles must share a common side/ray.

2) B and D

Adjacent angles are those that are directly next to each other and share a common side.

3) C

Angles 1 and 2 are congruent. Angles 3 and 4 are congruent. Both of these pairs have angles that are opposite each other.

4) B

Angles 1 and 2 add up to 180. Angles 3 and 4 add up to 180. Both of these pairs of angles are supplementary.

5) A

These angles are directly next to each other and share a common side.

Hope this helps!! :)

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2. 8x -28 = -140
8x -28 + 28 = -140 + 28
8x = -112
8x/8 = -112/8
x = -14

3. -9 + x/3 = -23
-9 + 9 + x/3 = -23 + 9
x/3 = -14
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4. x/-1.5 - 3.5 = -13.5
x/-1.5 - 3.5 + 3.5 = -13.5 + 3.5
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x/-1.5/-1.5= -10/-1.5
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5.-6(x + 3) = -36
-6x - 18 = -36
-6x - 18 + 18 = -36 + 18
-6x = -18
-6x/-6 = -18/-6
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6. k + 3.7/9.8 = -0.22
k + 3.7/9.8/9.8 = -0.22/9.8
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7. 12(x - 6) = -108
12x - 72 = -108
12x - 72 + 72 = -108 + 72
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8. -21.83x - -19.9 = -23.83
-21.83x + 19.9 = -23.83
-21.83x + 19.9 - 19.9 = -23.83 - 19.9
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-21.83x/-21.83 = -43.73/-21.83
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9. -10x - 68 + x = 40
-9x - 68 = 40
-9x -68 + 68 = 40 + 68
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10. -34 - 3x - 2x = 71
-34 - 5x = 71
-34 + 34 - 5x = 71 + 34
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-5x/-5 = 105/-5
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11. 3x - 77 - 8x = 23
-5x - 77 = 23
-5x - 77 + 77 = 23 + 77
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-5x/-5 = 100/-5
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3x - 10x + 60 = 123
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3x + 36 = 15
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-3x + 30x + 18 = -171
27x + 18 = -171
27x + 18 - 18 = -171 - 18
27x = -189
27x/27 = -189/27
x = -7










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