2n-40=7n-2(1-7n)

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Solution for 2n-40=7n-2(1-7n) equation:


Simplifying
2n + -40 = 7n + -2(1 + -7n)

Reorder the terms:
-40 + 2n = 7n + -2(1 + -7n)
-40 + 2n = 7n + (1 * -2 + -7n * -2)
-40 + 2n = 7n + (-2 + 14n)

Reorder the terms:
-40 + 2n = -2 + 7n + 14n

Combine like terms: 7n + 14n = 21n
-40 + 2n = -2 + 21n

Solving
-40 + 2n = -2 + 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.
-40 + 2n + -21n = -2 + 21n + -21n

Combine like terms: 2n + -21n = -19n
-40 + -19n = -2 + 21n + -21n

Combine like terms: 21n + -21n = 0
-40 + -19n = -2 + 0
-40 + -19n = -2

Add '40' to each side of the equation.
-40 + 40 + -19n = -2 + 40

Combine like terms: -40 + 40 = 0
0 + -19n = -2 + 40
-19n = -2 + 40

Combine like terms: -2 + 40 = 38
-19n = 38

Divide each side by '-19'.
n = -2

Simplifying
n = -2

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