6(3a-2)+5a=57
18a-12+5a=57
23a-12=57
23a=69
a=3
for every 3 gallons of blue paint there is an additional 5 gallons of yellow paint
Answer:

Step-by-step explanation:
Slope-intercept form is written in 
So, to solve, we must separate y onto one side and make its coefficient one.

Subtract 4x on both sides.

Divide both sides by the coefficient of
, which is 3.

Simplify.

Rewrite this equation into standard form by changing the order of
and 

Answer:
the answer for the question is 13°