3n-10=7(2n+n)

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Solution for 3n-10=7(2n+n) equation:


Simplifying
3n + -10 = 7(2n + n)

Reorder the terms:
-10 + 3n = 7(2n + n)

Combine like terms: 2n + n = 3n
-10 + 3n = 7(3n)

Remove parenthesis around (3n)
-10 + 3n = 7 * 3n

Multiply 7 * 3
-10 + 3n = 21n

Solving
-10 + 3n = 21n

Solving for variable 'n'.

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

Add '-21n' to each side of the equation.
-10 + 3n + -21n = 21n + -21n

Combine like terms: 3n + -21n = -18n
-10 + -18n = 21n + -21n

Combine like terms: 21n + -21n = 0
-10 + -18n = 0

Add '10' to each side of the equation.
-10 + 10 + -18n = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -18n = 0 + 10
-18n = 0 + 10

Combine like terms: 0 + 10 = 10
-18n = 10

Divide each side by '-18'.
n = -0.5555555556

Simplifying
n = -0.5555555556

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