Question

[1 + 2x(6+6:a)-5:6=2
314 - 2x| (16+a)-(83 -791)=260
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Answer 1

1. [1+2×(6+6:a)]-5=2×6
2. [1+2×(6+6:a)]-5=12
3. 1+2×(6+6:a)=12+5
4. 1+2×(6+6:a)=17
5. 2×(6+6:a)=17+1
6. 2×(6+6:a)=18
7. 6+6:a=18:2
8. 6+6:a=9
9. 6:a=9-6
10. 6:a=3
11. a=6×3
12. a=18