3(5-n)=-4(2n+1)

Solution for 3(5-n)=-4(2n+1) equation:

3(5-n)=-4(2n+1)

We move all terms to the left:

3(5-n)-(-4(2n+1))=0

We add all the numbers together, and all the variables

3(-1n+5)-(-4(2n+1))=0

We multiply parentheses

-3n-(-4(2n+1))+15=0


We calculate terms in parentheses: -(-4(2n+1)), so:

-4(2n+1)

We multiply parentheses

-8n-4

Back to the equation:

-(-8n-4)


We get rid of parentheses

-3n+8n+4+15=0

We add all the numbers together, and all the variables

5n+19=0

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

5n=-19

n=-19/5

n=-3+4/5