-64=3(r-8)-8(-2r+5)

Solution for -64=3(r-8)-8(-2r+5) equation:

Simplifying
-64 = 3(r + -8) + -8(-2r + 5)

Reorder the terms:
-64 = 3(-8 + r) + -8(-2r + 5)
-64 = (-8 * 3 + r * 3) + -8(-2r + 5)
-64 = (-24 + 3r) + -8(-2r + 5)

Reorder the terms:
-64 = -24 + 3r + -8(5 + -2r)
-64 = -24 + 3r + (5 * -8 + -2r * -8)
-64 = -24 + 3r + (-40 + 16r)

Reorder the terms:
-64 = -24 + -40 + 3r + 16r

Combine like terms: -24 + -40 = -64
-64 = -64 + 3r + 16r

Combine like terms: 3r + 16r = 19r
-64 = -64 + 19r

Add '64' to each side of the equation.
-64 + 64 = -64 + 64 + 19r

Combine like terms: -64 + 64 = 0
0 = -64 + 64 + 19r

Combine like terms: -64 + 64 = 0
0 = 0 + 19r
0 = 19r

Solving
0 = 19r

Solving for variable 'r'.

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

Add '-19r' to each side of the equation.
0 + -19r = 19r + -19r
Remove the zero:
-19r = 19r + -19r

Combine like terms: 19r + -19r = 0
-19r = 0

Divide each side by '-19'.
r = 0

Simplifying
r = 0