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zvonat [6]
3 years ago
5

Solve 13-m=2(-4+m).

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
7 0
-4+m=7 next do 13-m=2 m equals 11 it all equals 14
Alborosie3 years ago
4 0
The answer is m = 7.


1. (<span>13−m=2(m−4) </span>Regroup terms
2. Expand (<span>13−m=2m−<span>8)
3. </span></span>Add <span><span>m</span></span> to both sides (<span>13=2m−8+<span>m)
4. </span></span>Simplify (<span>2m−8+m</span> to <span><span><span>3m−8)
5. add 8 to both sides (13 + 8 = 3m)
6. </span></span></span>Simplify <span>13+8 to 21
7. </span>Divide both sides by <span><span>33</span></span> (21/3 = m)
8. simplify 21/3 to 7 (7 = m)
9. switch sides ( finally m = 7)



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