-7(n-9)-(5n-4)=-13n

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Solution for -7(n-9)-(5n-4)=-13n equation:


Simplifying
-7(n + -9) + -1(5n + -4) = -13n

Reorder the terms:
-7(-9 + n) + -1(5n + -4) = -13n
(-9 * -7 + n * -7) + -1(5n + -4) = -13n
(63 + -7n) + -1(5n + -4) = -13n

Reorder the terms:
63 + -7n + -1(-4 + 5n) = -13n
63 + -7n + (-4 * -1 + 5n * -1) = -13n
63 + -7n + (4 + -5n) = -13n

Reorder the terms:
63 + 4 + -7n + -5n = -13n

Combine like terms: 63 + 4 = 67
67 + -7n + -5n = -13n

Combine like terms: -7n + -5n = -12n
67 + -12n = -13n

Solving
67 + -12n = -13n

Solving for variable 'n'.

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

Add '13n' to each side of the equation.
67 + -12n + 13n = -13n + 13n

Combine like terms: -12n + 13n = 1n
67 + 1n = -13n + 13n

Combine like terms: -13n + 13n = 0
67 + 1n = 0

Add '-67' to each side of the equation.
67 + -67 + 1n = 0 + -67

Combine like terms: 67 + -67 = 0
0 + 1n = 0 + -67
1n = 0 + -67

Combine like terms: 0 + -67 = -67
1n = -67

Divide each side by '1'.
n = -67

Simplifying
n = -67

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