Simplify: $12 m - (- 7 m)$

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Solution

$12 m - (- 7 m)$
$= 12 m + 7 m$
$= 19 m$

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Similar questions

12 m - 9 + 5 m - 4 m - 7 m + 10

(7 m - 8 n)^{2} + (7 m + 8 n)^{2}

Question 4(iii)
Simplify:
$(7 m - 8 n)^{2} + (7 m + 8 n)^{2}$

\frac{(7 m - 8 n)^{2} (7 m + 8 n)^{2}}{(7 m)^{2} - (8 n)^{2}}

Question 4(iii)
Simplify:
$(7 m - 8 n)^{2} + (7 m + 8 n)^{2}$

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