3-7(-5r-6)=

Solution for 3-7(-5r-6)= equation:

Simplifying
3 + -7(-5r + -6) = 0

Reorder the terms:
3 + -7(-6 + -5r) = 0
3 + (-6 * -7 + -5r * -7) = 0
3 + (42 + 35r) = 0

Combine like terms: 3 + 42 = 45
45 + 35r = 0

Solving
45 + 35r = 0

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-45' to each side of the equation.
45 + -45 + 35r = 0 + -45

Combine like terms: 45 + -45 = 0
0 + 35r = 0 + -45
35r = 0 + -45

Combine like terms: 0 + -45 = -45
35r = -45

Divide each side by '35'.
r = -1.285714286

Simplifying
r = -1.285714286