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neonofarm [45]
3 years ago
13

Q (x + 40) (3x – 20) R S Find m

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
5 0

Answer:

30

Step-by-step explanation:

1. x + 40 = 3x - 20

2. 40 = 2x - 20

3. 60 = 2x

4. 30 = x

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Step-by-step explanation:

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3 years ago
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3 0
3 years ago
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ozzi
This is what is called a literal equation.  Solve it for m just like you would solve any equation for x.  Isolate the term with the variable you're looking for.  Do this by subtracting 4cm from both sides to give you g - 4cm = -3m.  Now we need to divide by -3 to get m alone: \frac{g-4cm}{-3}=m.  Or we could lose the negative on the 3 in the denominator like this: \frac{-g+4cm}{3}=m and \frac{4cm-g}{3}=m.  There you go!  Any one of those last three would work.  It just depends upon how your teacher wants you to express your answer.
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3 years ago
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