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nadezda [96]
2 years ago
5

Add using the number line. 8+(−4) Drag and drop the word SUM to the correct value on the number line.

Mathematics
2 answers:
Triss [41]2 years ago
8 0

Answer:

Place "SUM" at 4 on the number line.

Step-by-step explanation:

8 + (-4) = 8 - 4 = 4

Adding a negative number is the same as subtracting its opposite. Adding -4 is the same as subtracting 4.

BartSMP [9]2 years ago
4 0

Answer:

The answer is 4.

Step-by-step explanation:

Given problem,

8 + (-4)

Since, in the number line the numbers left to zero are negative and right to zero are positive,

When, we move towards a negative number then we move left side while when we move towards a positive number then we move right side,

Thus, the steps involve in the given problem are follow,

Step 1 : Find 8 on the number line,

Step : we have -4, means we need to move left side 4 unit from 8,

Step 3 : the final position is 4.

Hence, 8 + (-4) = 4

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krok68 [10]

Answer:

Z = - 2, Y = 0, X = 0

Step-by-step explanation:

2X – Y + Z = – 2

6X + 3Y – 4Z = 8

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isolate "X" in the first equation

2X - Y + Z = - 2 => isolate "2X"

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substitute this value of X in the second two equations (applying the substitution method here)

6(- 1 - Z/2 + Y/2) + 3Y - 4Z = 8,

6Y - 7Z - 6 = 8

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6Y - 7Z - 6 = 8 => isolate 6Y

6Y = 14 + 7Z => divide either side by 6

Y = 7Z + 14/6 => substitute in second equation

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61Z + 50/12 = - 6, Z = - 2

substitute the value of Z into the equations "Y = 7Z + 14/6" and using the value of Y and Z, substitute into "X = - 1 - Z/2 + Y/2"

Y = (7(- 2) + 14)/6 = 0 / 6

= 0

X = - 1 - (- 2)/2 + 0/2 = - 1 - (-1) + 0

= - 1 + 1 + 0 = 0

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2 years ago
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7 0
1 year ago
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Doss [256]

Answer:

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Step-by-step explanation:

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