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EXERCISE 5B

1. A number decreased by 4 is equal to -6. Find the number.

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To solve the problem, "A number decreased by 4 is equal to -6. Find the number," follow these steps:

1. Let the unknown number be [tex]\( x \)[/tex].

2. Translate the problem statement into an equation:
[tex]\[ x - 4 = -6 \][/tex]

3. To isolate [tex]\( x \)[/tex], you need to eliminate the -4 on the left side. You can do this by adding 4 to both sides of the equation:
[tex]\[ x - 4 + 4 = -6 + 4 \][/tex]

4. Simplify both sides of the equation:
[tex]\[ x = -2 \][/tex]

Thus, the number is [tex]\( -2 \)[/tex].
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