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Solving Equations

How do you do these type of problems?
2.4=3(m+4)
5(1-2w)+8w=15
If 3(x+1)=7 what is the value of 3x

Solution Preview

2.4=3(m+4)

Solution. By the distributive law, we can multiply 3 into each of two terms on the right hand side, we get
2.4=3m+12
So, we get
3m=-9.6
Then we divide by 3 on both ...

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