The slope intercept form of an equation is given by,

Here, m is the slope and c is the y intercept.
The given equation is,

Apply distributive property (A[B+C]= AB+BC) in the above equation to make it to the form of equation (1).

Now, combine the like terms.

Equation (2) is in the form of equation (1).
Therefore, the slope-intercept form of y=2(5x + 1) + 3(5x + 3) is,
y=25x+11.