Question

calculate the value of expressions on both sides of equal. What do you notice? (a) [15-(-3)] +6 =15+[(-3) +6]
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Answer 1

Answer:

(a) [15-(-3)]+6 = 15+[(-3) +6]

[15+3]+6 = 15+[-3+6]

18+6 = 15+3

24 = 18

so, both side is not equal. beacause of plus and minus sign.