30-[15-{8-(6-8-7)}]+14÷2
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Answered by
0
Step-by-step explanation:
=30- [15-{8-(-9)}] +7
=30-[7+9] +7
=30- [16] +17
=14+ 17
=31
Answered by
1
30-[15-{8-(6-8-7)}]+14÷2
30-[15-{8-(-9)}]+14÷2
30-{15-(8 + 9)}+14÷2
30-(15-17)+14÷2
30-(-2)+14÷2
30+2+14÷2
30+2+7
39
Hope it helps
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