7/5u=-42

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Solution for 7/5u=-42 equation: 



7/5u=-42

We move all terms to the left:

7/5u-(-42)=0



Domain of the equation: 5u!=0

u!=0/5

u!=0

u∈R



We add all the numbers together, and all the variables

7/5u+42=0

We multiply all the terms by the denominator


42*5u+7=0

Wy multiply elements

210u+7=0

We move all terms containing u to the left, all other terms to the right

210u=-7

u=-7/210

u=-1/30

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