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Mathematics

1 answer:

scoundrel [369]3 years ago

3 0

Hello!

Question 7

x + 8 = -2
x + 8 - 8 = -2 - 8 (subtract 8 from both sides to remove +8 from x)
x = - 10

Choice A.

Question 8

x - 7 = -3
x - 7 + 7 = -3 + 7 (add 7 to both sides to remove -7 from x)
x = 4

Choice A.

Question 9

36½ - 24½ = 12

Choice B.

Question 10

29 - x = 17 ¼
The reason the value of the number reduces is because a number, x, is subtracted from the original value.
So when subtracting by a number, let's say variable x, the result is naturally a smaller number. (unless the variable is negative)

Choice B.

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