-4(r-10)=4(-2r-2)

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Solution for -4(r-10)=4(-2r-2) equation:


Simplifying
-4(r + -10) = 4(-2r + -2)

Reorder the terms:
-4(-10 + r) = 4(-2r + -2)
(-10 * -4 + r * -4) = 4(-2r + -2)
(40 + -4r) = 4(-2r + -2)

Reorder the terms:
40 + -4r = 4(-2 + -2r)
40 + -4r = (-2 * 4 + -2r * 4)
40 + -4r = (-8 + -8r)

Solving
40 + -4r = -8 + -8r

Solving for variable 'r'.

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

Add '8r' to each side of the equation.
40 + -4r + 8r = -8 + -8r + 8r

Combine like terms: -4r + 8r = 4r
40 + 4r = -8 + -8r + 8r

Combine like terms: -8r + 8r = 0
40 + 4r = -8 + 0
40 + 4r = -8

Add '-40' to each side of the equation.
40 + -40 + 4r = -8 + -40

Combine like terms: 40 + -40 = 0
0 + 4r = -8 + -40
4r = -8 + -40

Combine like terms: -8 + -40 = -48
4r = -48

Divide each side by '4'.
r = -12

Simplifying
r = -12

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