7n-4(1-2n)=-20+7n

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Solution for 7n-4(1-2n)=-20+7n equation:


Simplifying
7n + -4(1 + -2n) = -20 + 7n
7n + (1 * -4 + -2n * -4) = -20 + 7n
7n + (-4 + 8n) = -20 + 7n

Reorder the terms:
-4 + 7n + 8n = -20 + 7n

Combine like terms: 7n + 8n = 15n
-4 + 15n = -20 + 7n

Solving
-4 + 15n = -20 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
-4 + 15n + -7n = -20 + 7n + -7n

Combine like terms: 15n + -7n = 8n
-4 + 8n = -20 + 7n + -7n

Combine like terms: 7n + -7n = 0
-4 + 8n = -20 + 0
-4 + 8n = -20

Add '4' to each side of the equation.
-4 + 4 + 8n = -20 + 4

Combine like terms: -4 + 4 = 0
0 + 8n = -20 + 4
8n = -20 + 4

Combine like terms: -20 + 4 = -16
8n = -16

Divide each side by '8'.
n = -2

Simplifying
n = -2

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