-4-3(5n+4)=40-7n

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Solution for -4-3(5n+4)=40-7n equation:


Simplifying
-4 + -3(5n + 4) = 40 + -7n

Reorder the terms:
-4 + -3(4 + 5n) = 40 + -7n
-4 + (4 * -3 + 5n * -3) = 40 + -7n
-4 + (-12 + -15n) = 40 + -7n

Combine like terms: -4 + -12 = -16
-16 + -15n = 40 + -7n

Solving
-16 + -15n = 40 + -7n

Solving for variable 'n'.

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

Add '7n' to each side of the equation.
-16 + -15n + 7n = 40 + -7n + 7n

Combine like terms: -15n + 7n = -8n
-16 + -8n = 40 + -7n + 7n

Combine like terms: -7n + 7n = 0
-16 + -8n = 40 + 0
-16 + -8n = 40

Add '16' to each side of the equation.
-16 + 16 + -8n = 40 + 16

Combine like terms: -16 + 16 = 0
0 + -8n = 40 + 16
-8n = 40 + 16

Combine like terms: 40 + 16 = 56
-8n = 56

Divide each side by '-8'.
n = -7

Simplifying
n = -7

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