Answer :

To work out the expression [tex]\(-20 + 11 + 12 - 7\)[/tex], we'll calculate it step-by-step:

1. Start with the first two numbers: [tex]\(-20 + 11\)[/tex].
- This is the same as subtracting 11 from 20 because we're adding a positive number to a negative number.
- [tex]\(-20 + 11 = -9\)[/tex].

2. Next, add 12 to the result from step 1: [tex]\(-9 + 12\)[/tex].
- This involves adding a positive number to a negative number.
- [tex]\(-9 + 12 = 3\)[/tex].

3. Finally, subtract 7: [tex]\(3 - 7\)[/tex].
- This step involves subtracting a positive number from another number.
- [tex]\(3 - 7 = -4\)[/tex].

So, the result of [tex]\(-20 + 11 + 12 - 7\)[/tex] is [tex]\(-4\)[/tex].

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