-3=2(r+-4)+-1

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Solution for -3=2(r+-4)+-1 equation:


Simplifying
-3 = 2(r + -4) + -1

Reorder the terms:
-3 = 2(-4 + r) + -1
-3 = (-4 * 2 + r * 2) + -1
-3 = (-8 + 2r) + -1

Reorder the terms:
-3 = -8 + -1 + 2r

Combine like terms: -8 + -1 = -9
-3 = -9 + 2r

Solving
-3 = -9 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-3 + -2r = -9 + 2r + -2r

Combine like terms: 2r + -2r = 0
-3 + -2r = -9 + 0
-3 + -2r = -9

Add '3' to each side of the equation.
-3 + 3 + -2r = -9 + 3

Combine like terms: -3 + 3 = 0
0 + -2r = -9 + 3
-2r = -9 + 3

Combine like terms: -9 + 3 = -6
-2r = -6

Divide each side by '-2'.
r = 3

Simplifying
r = 3

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