5((40-x)+7)+10(40-x)+25x=405

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Solution for 5((40-x)+7)+10(40-x)+25x=405 equation:


Simplifying
5((40 + -1x) + 7) + 10(40 + -1x) + 25x = 405

Remove parenthesis around (40 + -1x)
5(40 + -1x + 7) + 10(40 + -1x) + 25x = 405

Reorder the terms:
5(40 + 7 + -1x) + 10(40 + -1x) + 25x = 405

Combine like terms: 40 + 7 = 47
5(47 + -1x) + 10(40 + -1x) + 25x = 405
(47 * 5 + -1x * 5) + 10(40 + -1x) + 25x = 405
(235 + -5x) + 10(40 + -1x) + 25x = 405
235 + -5x + (40 * 10 + -1x * 10) + 25x = 405
235 + -5x + (400 + -10x) + 25x = 405

Reorder the terms:
235 + 400 + -5x + -10x + 25x = 405

Combine like terms: 235 + 400 = 635
635 + -5x + -10x + 25x = 405

Combine like terms: -5x + -10x = -15x
635 + -15x + 25x = 405

Combine like terms: -15x + 25x = 10x
635 + 10x = 405

Solving
635 + 10x = 405

Solving for variable 'x'.

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

Add '-635' to each side of the equation.
635 + -635 + 10x = 405 + -635

Combine like terms: 635 + -635 = 0
0 + 10x = 405 + -635
10x = 405 + -635

Combine like terms: 405 + -635 = -230
10x = -230

Divide each side by '10'.
x = -23

Simplifying
x = -23

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