(R-4)-(2r+16)=7+r-23

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Solution for (R-4)-(2r+16)=7+r-23 equation:


Simplifying
(R + -4) + -1(2r + 16) = 7 + r + -23

Reorder the terms:
(-4 + R) + -1(2r + 16) = 7 + r + -23

Remove parenthesis around (-4 + R)
-4 + R + -1(2r + 16) = 7 + r + -23

Reorder the terms:
-4 + R + -1(16 + 2r) = 7 + r + -23
-4 + R + (16 * -1 + 2r * -1) = 7 + r + -23
-4 + R + (-16 + -2r) = 7 + r + -23

Reorder the terms:
-4 + -16 + R + -2r = 7 + r + -23

Combine like terms: -4 + -16 = -20
-20 + R + -2r = 7 + r + -23

Reorder the terms:
-20 + R + -2r = 7 + -23 + r

Combine like terms: 7 + -23 = -16
-20 + R + -2r = -16 + r

Solving
-20 + R + -2r = -16 + r

Solving for variable 'R'.

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

Add '20' to each side of the equation.
-20 + R + 20 + -2r = -16 + 20 + r

Reorder the terms:
-20 + 20 + R + -2r = -16 + 20 + r

Combine like terms: -20 + 20 = 0
0 + R + -2r = -16 + 20 + r
R + -2r = -16 + 20 + r

Combine like terms: -16 + 20 = 4
R + -2r = 4 + r

Add '2r' to each side of the equation.
R + -2r + 2r = 4 + r + 2r

Combine like terms: -2r + 2r = 0
R + 0 = 4 + r + 2r
R = 4 + r + 2r

Combine like terms: r + 2r = 3r
R = 4 + 3r

Simplifying
R = 4 + 3r

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