30(10-3n)=-15(3-n)

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Solution for 30(10-3n)=-15(3-n) equation:


Simplifying
30(10 + -3n) = -15(3 + -1n)
(10 * 30 + -3n * 30) = -15(3 + -1n)
(300 + -90n) = -15(3 + -1n)
300 + -90n = (3 * -15 + -1n * -15)
300 + -90n = (-45 + 15n)

Solving
300 + -90n = -45 + 15n

Solving for variable 'n'.

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

Add '-15n' to each side of the equation.
300 + -90n + -15n = -45 + 15n + -15n

Combine like terms: -90n + -15n = -105n
300 + -105n = -45 + 15n + -15n

Combine like terms: 15n + -15n = 0
300 + -105n = -45 + 0
300 + -105n = -45

Add '-300' to each side of the equation.
300 + -300 + -105n = -45 + -300

Combine like terms: 300 + -300 = 0
0 + -105n = -45 + -300
-105n = -45 + -300

Combine like terms: -45 + -300 = -345
-105n = -345

Divide each side by '-105'.
n = 3.285714286

Simplifying
n = 3.285714286

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