40=10r

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Solution for 40=10r equation:


Simplifying
40 = 10r

Solving
40 = 10r

Solving for variable 'r'.

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

Add '-10r' to each side of the equation.
40 + -10r = 10r + -10r

Combine like terms: 10r + -10r = 0
40 + -10r = 0

Add '-40' to each side of the equation.
40 + -40 + -10r = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -10r = 0 + -40
-10r = 0 + -40

Combine like terms: 0 + -40 = -40
-10r = -40

Divide each side by '-10'.
r = 4

Simplifying
r = 4

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