7(-n-3)-7(1+2n)=-7

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Solution for 7(-n-3)-7(1+2n)=-7 equation:


Simplifying
7(-1n + -3) + -7(1 + 2n) = -7

Reorder the terms:
7(-3 + -1n) + -7(1 + 2n) = -7
(-3 * 7 + -1n * 7) + -7(1 + 2n) = -7
(-21 + -7n) + -7(1 + 2n) = -7
-21 + -7n + (1 * -7 + 2n * -7) = -7
-21 + -7n + (-7 + -14n) = -7

Reorder the terms:
-21 + -7 + -7n + -14n = -7

Combine like terms: -21 + -7 = -28
-28 + -7n + -14n = -7

Combine like terms: -7n + -14n = -21n
-28 + -21n = -7

Solving
-28 + -21n = -7

Solving for variable 'n'.

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

Add '28' to each side of the equation.
-28 + 28 + -21n = -7 + 28

Combine like terms: -28 + 28 = 0
0 + -21n = -7 + 28
-21n = -7 + 28

Combine like terms: -7 + 28 = 21
-21n = 21

Divide each side by '-21'.
n = -1

Simplifying
n = -1

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