-(10r+2)-10=-3-9r

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Solution for -(10r+2)-10=-3-9r equation:


Simplifying
-1(10r + 2) + -10 = -3 + -9r

Reorder the terms:
-1(2 + 10r) + -10 = -3 + -9r
(2 * -1 + 10r * -1) + -10 = -3 + -9r
(-2 + -10r) + -10 = -3 + -9r

Reorder the terms:
-2 + -10 + -10r = -3 + -9r

Combine like terms: -2 + -10 = -12
-12 + -10r = -3 + -9r

Solving
-12 + -10r = -3 + -9r

Solving for variable 'r'.

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

Add '9r' to each side of the equation.
-12 + -10r + 9r = -3 + -9r + 9r

Combine like terms: -10r + 9r = -1r
-12 + -1r = -3 + -9r + 9r

Combine like terms: -9r + 9r = 0
-12 + -1r = -3 + 0
-12 + -1r = -3

Add '12' to each side of the equation.
-12 + 12 + -1r = -3 + 12

Combine like terms: -12 + 12 = 0
0 + -1r = -3 + 12
-1r = -3 + 12

Combine like terms: -3 + 12 = 9
-1r = 9

Divide each side by '-1'.
r = -9

Simplifying
r = -9

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