15(20+m)=420

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Solution for 15(20+m)=420 equation:


Simplifying
15(20 + m) = 420
(20 * 15 + m * 15) = 420
(300 + 15m) = 420

Solving
300 + 15m = 420

Solving for variable 'm'.

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

Add '-300' to each side of the equation.
300 + -300 + 15m = 420 + -300

Combine like terms: 300 + -300 = 0
0 + 15m = 420 + -300
15m = 420 + -300

Combine like terms: 420 + -300 = 120
15m = 120

Divide each side by '15'.
m = 8

Simplifying
m = 8

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