(-4)+(-7)=(-7)+?
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Answer:
[tex]( - 4) + ( - 7) = ( - 7) + ( - 4) \\ - 11 = - 11[/tex]
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Verified answer
Solution
Let's keep the unknown value be "x"
[tex]\implies \: - 4 + ( - 7) = ( - 7) + x[/tex]
[tex]\implies \: - 11 = \: - 7 + x[/tex]
[tex]\implies \: - 11 + 7 = x[/tex]
[tex]\implies \: x = - 4[/tex]
To check:
[tex]\implies \: - 4 + ( - 7) = ( - 7) + x[/tex]
[tex]\implies \: - 4 + ( - 7) = ( - 7) + ( - 4)[/tex]
[tex] - 11 = ( - 11)[/tex]
Therefore, hence verified.
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