Respuesta :
(10m – 6) – (7m – 4)
= 10m - 6 - 7m + 4
= 3m - 2
So
[10m + (–7m)] + [(–6) + 4]
= 3m + (-2)
= 3m - 2 ..............matching answer.
Answer
[10m + (–7m)] + [(–6) + 4]
To add or subtract any algebraic expression, variables add or subtract with variables and constant term add or subtract with constant terms in the expression.
To solve given expression, we use [10m + (–7m)] + [(–6) + 4] expression.
Given expression is,
(10m – 6) – (7m – 4)
Now, variables add or subtract with variables and constant term add or subtract with constant terms in the above expression.
10m - 6 - 7m + 4
(10m - 7m) + (-6 + 4)
[10m + (–7m)] + [(–6) + 4]
So, first option is correct.
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