7(2n+6)-8(5n-3)=3n-7n

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Solution for 7(2n+6)-8(5n-3)=3n-7n equation:


Simplifying
7(2n + 6) + -8(5n + -3) = 3n + -7n

Reorder the terms:
7(6 + 2n) + -8(5n + -3) = 3n + -7n
(6 * 7 + 2n * 7) + -8(5n + -3) = 3n + -7n
(42 + 14n) + -8(5n + -3) = 3n + -7n

Reorder the terms:
42 + 14n + -8(-3 + 5n) = 3n + -7n
42 + 14n + (-3 * -8 + 5n * -8) = 3n + -7n
42 + 14n + (24 + -40n) = 3n + -7n

Reorder the terms:
42 + 24 + 14n + -40n = 3n + -7n

Combine like terms: 42 + 24 = 66
66 + 14n + -40n = 3n + -7n

Combine like terms: 14n + -40n = -26n
66 + -26n = 3n + -7n

Combine like terms: 3n + -7n = -4n
66 + -26n = -4n

Solving
66 + -26n = -4n

Solving for variable 'n'.

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

Add '4n' to each side of the equation.
66 + -26n + 4n = -4n + 4n

Combine like terms: -26n + 4n = -22n
66 + -22n = -4n + 4n

Combine like terms: -4n + 4n = 0
66 + -22n = 0

Add '-66' to each side of the equation.
66 + -66 + -22n = 0 + -66

Combine like terms: 66 + -66 = 0
0 + -22n = 0 + -66
-22n = 0 + -66

Combine like terms: 0 + -66 = -66
-22n = -66

Divide each side by '-22'.
n = 3

Simplifying
n = 3

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