0.3(a-15)=4-0.2(5-0.7a)

Solution for 0.3(a-15)=4-0.2(5-0.7a) equation:

0.3(a-15)=4-0.2(5-0.7a)

We move all terms to the left:

0.3(a-15)-(4-0.2(5-0.7a))=0

We add all the numbers together, and all the variables

0.3(a-15)-(4-0.2(-0.7a+5))=0

We multiply parentheses

0.3a-(4-0.2(-0.7a+5))-4.5=0


We calculate terms in parentheses: -(4-0.2(-0.7a+5)), so:

4-0.2(-0.7a+5)

determiningTheFunctionDomain
-0.2(-0.7a+5)+4

We multiply parentheses

-0a-1+4

We add all the numbers together, and all the variables

-1a+3

Back to the equation:

-(-1a+3)


We get rid of parentheses

0.3a+1a-3-4.5=0

We add all the numbers together, and all the variables

1.3a-7.5=0

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

1.3a=7.5

a=7.5/1.3

a=5+1/1.3