R-t+r=9

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Solution for R-t+r=9 equation:


Simplifying
R + -1t + r = 9

Reorder the terms:
R + r + -1t = 9

Solving
R + r + -1t = 9

Solving for variable 'R'.

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

Add '-1r' to each side of the equation.
R + r + -1r + -1t = 9 + -1r

Combine like terms: r + -1r = 0
R + 0 + -1t = 9 + -1r
R + -1t = 9 + -1r

Add 't' to each side of the equation.
R + -1t + t = 9 + -1r + t

Combine like terms: -1t + t = 0
R + 0 = 9 + -1r + t
R = 9 + -1r + t

Simplifying
R = 9 + -1r + t

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