24=20+r

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Solution for 24=20+r equation:


Simplifying
24 = 20 + r

Solving
24 = 20 + r

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.
24 + -1r = 20 + r + -1r

Combine like terms: r + -1r = 0
24 + -1r = 20 + 0
24 + -1r = 20

Add '-24' to each side of the equation.
24 + -24 + -1r = 20 + -24

Combine like terms: 24 + -24 = 0
0 + -1r = 20 + -24
-1r = 20 + -24

Combine like terms: 20 + -24 = -4
-1r = -4

Divide each side by '-1'.
r = 4

Simplifying
r = 4

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