7(n-7)-8(7n+4)=17

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Solution for 7(n-7)-8(7n+4)=17 equation:


Simplifying
7(n + -7) + -8(7n + 4) = 17

Reorder the terms:
7(-7 + n) + -8(7n + 4) = 17
(-7 * 7 + n * 7) + -8(7n + 4) = 17
(-49 + 7n) + -8(7n + 4) = 17

Reorder the terms:
-49 + 7n + -8(4 + 7n) = 17
-49 + 7n + (4 * -8 + 7n * -8) = 17
-49 + 7n + (-32 + -56n) = 17

Reorder the terms:
-49 + -32 + 7n + -56n = 17

Combine like terms: -49 + -32 = -81
-81 + 7n + -56n = 17

Combine like terms: 7n + -56n = -49n
-81 + -49n = 17

Solving
-81 + -49n = 17

Solving for variable 'n'.

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

Add '81' to each side of the equation.
-81 + 81 + -49n = 17 + 81

Combine like terms: -81 + 81 = 0
0 + -49n = 17 + 81
-49n = 17 + 81

Combine like terms: 17 + 81 = 98
-49n = 98

Divide each side by '-49'.
n = -2

Simplifying
n = -2

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