100+136+4x+(5x+12)+2x+(5x-8)=720

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Solution for 100+136+4x+(5x+12)+2x+(5x-8)=720 equation:


Simplifying
100 + 136 + 4x + (5x + 12) + 2x + (5x + -8) = 720

Reorder the terms:
100 + 136 + 4x + (12 + 5x) + 2x + (5x + -8) = 720

Remove parenthesis around (12 + 5x)
100 + 136 + 4x + 12 + 5x + 2x + (5x + -8) = 720

Reorder the terms:
100 + 136 + 4x + 12 + 5x + 2x + (-8 + 5x) = 720

Remove parenthesis around (-8 + 5x)
100 + 136 + 4x + 12 + 5x + 2x + -8 + 5x = 720

Reorder the terms:
100 + 136 + 12 + -8 + 4x + 5x + 2x + 5x = 720

Combine like terms: 100 + 136 = 236
236 + 12 + -8 + 4x + 5x + 2x + 5x = 720

Combine like terms: 236 + 12 = 248
248 + -8 + 4x + 5x + 2x + 5x = 720

Combine like terms: 248 + -8 = 240
240 + 4x + 5x + 2x + 5x = 720

Combine like terms: 4x + 5x = 9x
240 + 9x + 2x + 5x = 720

Combine like terms: 9x + 2x = 11x
240 + 11x + 5x = 720

Combine like terms: 11x + 5x = 16x
240 + 16x = 720

Solving
240 + 16x = 720

Solving for variable 'x'.

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

Add '-240' to each side of the equation.
240 + -240 + 16x = 720 + -240

Combine like terms: 240 + -240 = 0
0 + 16x = 720 + -240
16x = 720 + -240

Combine like terms: 720 + -240 = 480
16x = 480

Divide each side by '16'.
x = 30

Simplifying
x = 30

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