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3m + 1m -7 + 3m = 21 solve this one to
asked
Jun 22, 2017
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3m + 1m -7 + 3m = 21 solve this one to
Mathematics
middle-school
AJReading
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3m + 1m -7 + 3m = 21
3m + 1m -7 + 3m = 21
+7 + 7
3m + 1m +3m =28
7m =28
7m/7 =28/7
m=4
Taha Zgued
answered
Jun 22, 2017
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Taha Zgued
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2
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Let's solve your equation step-by-step.
3m+
1m
−7
+
3m
=21
Step 1: Simplify both sides of the equation.
3m
+
1m
−7
+
3m
=21
Simplify: (Show steps)
7m
−7
=21
Step 2: Add 7 to both sides.
7m
−7
+7
=
21+7
7m
=28
Step 3: Divide both sides by 7.
7m/
7
=
28/7
m=4
Answer:
m=
4
OllyBarca
answered
Jun 26, 2017
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OllyBarca
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