40+30n=250

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Solution for 40+30n=250 equation: 


Simplifying
40 + 30n = 250

Solving
40 + 30n = 250

Solving for variable 'n'.

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

Add '-40' to each side of the equation.
40 + -40 + 30n = 250 + -40

Combine like terms: 40 + -40 = 0
0 + 30n = 250 + -40
30n = 250 + -40

Combine like terms: 250 + -40 = 210
30n = 210

Divide each side by '30'.
n = 7

Simplifying
n = 7

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