18b+12(87-5n+10b+n)-13=68

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Solution for 18b+12(87-5n+10b+n)-13=68 equation:


Simplifying
18b + 12(87 + -5n + 10b + n) + -13 = 68

Reorder the terms:
18b + 12(87 + 10b + -5n + n) + -13 = 68

Combine like terms: -5n + n = -4n
18b + 12(87 + 10b + -4n) + -13 = 68
18b + (87 * 12 + 10b * 12 + -4n * 12) + -13 = 68
18b + (1044 + 120b + -48n) + -13 = 68

Reorder the terms:
1044 + -13 + 18b + 120b + -48n = 68

Combine like terms: 1044 + -13 = 1031
1031 + 18b + 120b + -48n = 68

Combine like terms: 18b + 120b = 138b
1031 + 138b + -48n = 68

Solving
1031 + 138b + -48n = 68

Solving for variable 'b'.

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

Add '-1031' to each side of the equation.
1031 + 138b + -1031 + -48n = 68 + -1031

Reorder the terms:
1031 + -1031 + 138b + -48n = 68 + -1031

Combine like terms: 1031 + -1031 = 0
0 + 138b + -48n = 68 + -1031
138b + -48n = 68 + -1031

Combine like terms: 68 + -1031 = -963
138b + -48n = -963

Add '48n' to each side of the equation.
138b + -48n + 48n = -963 + 48n

Combine like terms: -48n + 48n = 0
138b + 0 = -963 + 48n
138b = -963 + 48n

Divide each side by '138'.
b = -6.97826087 + 0.347826087n

Simplifying
b = -6.97826087 + 0.347826087n

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