4R-18=20+1.9

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Solution for 4R-18=20+1.9 equation:


Simplifying
4R + -18 = 20 + 1.9

Reorder the terms:
-18 + 4R = 20 + 1.9

Combine like terms: 20 + 1.9 = 21.9
-18 + 4R = 21.9

Solving
-18 + 4R = 21.9

Solving for variable 'R'.

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

Add '18' to each side of the equation.
-18 + 18 + 4R = 21.9 + 18

Combine like terms: -18 + 18 = 0
0 + 4R = 21.9 + 18
4R = 21.9 + 18

Combine like terms: 21.9 + 18 = 39.9
4R = 39.9

Divide each side by '4'.
R = 9.975

Simplifying
R = 9.975

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