My God!! This is too elementary! Are you sure you need help in this?
15 – (–3) – 5 – 12
= 15 + 3 - 5 - 12 = 1
= 15 + 3 - 5 - 12
= 18 - 5 - 12
= 13 - 12
= 1
1
15 + 3 - 17 = 1
15+3-17=1
15-(-3)-5-12
=15+3-5-12
=1
The 15-(-3) becomes 18 because the 2 negatives become positive. 18-5 is 13, and 13-12 is 1.
15+3-5-12
18-17
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My God!! This is too elementary! Are you sure you need help in this?
15 – (–3) – 5 – 12
= 15 + 3 - 5 - 12 = 1
15 – (–3) – 5 – 12
= 15 + 3 - 5 - 12
= 18 - 5 - 12
= 13 - 12
= 1
1
15 + 3 - 17 = 1
15+3-17=1
15-(-3)-5-12
=15+3-5-12
=1
The 15-(-3) becomes 18 because the 2 negatives become positive. 18-5 is 13, and 13-12 is 1.
15+3-5-12
18-17
=1