4R-7+3r+9-8r=

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Solution for 4R-7+3r+9-8r= equation:


Simplifying
4R + -7 + 3r + 9 + -8r = 0

Reorder the terms:
-7 + 9 + 4R + 3r + -8r = 0

Combine like terms: -7 + 9 = 2
2 + 4R + 3r + -8r = 0

Combine like terms: 3r + -8r = -5r
2 + 4R + -5r = 0

Solving
2 + 4R + -5r = 0

Solving for variable 'R'.

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

Add '-2' to each side of the equation.
2 + 4R + -2 + -5r = 0 + -2

Reorder the terms:
2 + -2 + 4R + -5r = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 4R + -5r = 0 + -2
4R + -5r = 0 + -2

Combine like terms: 0 + -2 = -2
4R + -5r = -2

Add '5r' to each side of the equation.
4R + -5r + 5r = -2 + 5r

Combine like terms: -5r + 5r = 0
4R + 0 = -2 + 5r
4R = -2 + 5r

Divide each side by '4'.
R = -0.5 + 1.25r

Simplifying
R = -0.5 + 1.25r

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