30=-4(7a-5)

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Solution for 30=-4(7a-5) equation: 



30=-4(7a-5)

We move all terms to the left:

30-(-4(7a-5))=0



We calculate terms in parentheses: -(-4(7a-5)), so:

-4(7a-5)

We multiply parentheses

-28a+20

Back to the equation:

-(-28a+20)



We get rid of parentheses

28a-20+30=0

We add all the numbers together, and all the variables

28a+10=0

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

28a=-10

a=-10/28

a=-5/14

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