8(-4-2r)=5(8-2r)

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Solution for 8(-4-2r)=5(8-2r) equation:


Simplifying
8(-4 + -2r) = 5(8 + -2r)
(-4 * 8 + -2r * 8) = 5(8 + -2r)
(-32 + -16r) = 5(8 + -2r)
-32 + -16r = (8 * 5 + -2r * 5)
-32 + -16r = (40 + -10r)

Solving
-32 + -16r = 40 + -10r

Solving for variable 'r'.

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

Add '10r' to each side of the equation.
-32 + -16r + 10r = 40 + -10r + 10r

Combine like terms: -16r + 10r = -6r
-32 + -6r = 40 + -10r + 10r

Combine like terms: -10r + 10r = 0
-32 + -6r = 40 + 0
-32 + -6r = 40

Add '32' to each side of the equation.
-32 + 32 + -6r = 40 + 32

Combine like terms: -32 + 32 = 0
0 + -6r = 40 + 32
-6r = 40 + 32

Combine like terms: 40 + 32 = 72
-6r = 72

Divide each side by '-6'.
r = -12

Simplifying
r = -12

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