720=60+2x+65+x+100+120

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Solution for 720=60+2x+65+x+100+120 equation:


Simplifying
720 = 60 + 2x + 65 + x + 100 + 120

Reorder the terms:
720 = 60 + 65 + 100 + 120 + 2x + x

Combine like terms: 60 + 65 = 125
720 = 125 + 100 + 120 + 2x + x

Combine like terms: 125 + 100 = 225
720 = 225 + 120 + 2x + x

Combine like terms: 225 + 120 = 345
720 = 345 + 2x + x

Combine like terms: 2x + x = 3x
720 = 345 + 3x

Solving
720 = 345 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
720 + -3x = 345 + 3x + -3x

Combine like terms: 3x + -3x = 0
720 + -3x = 345 + 0
720 + -3x = 345

Add '-720' to each side of the equation.
720 + -720 + -3x = 345 + -720

Combine like terms: 720 + -720 = 0
0 + -3x = 345 + -720
-3x = 345 + -720

Combine like terms: 345 + -720 = -375
-3x = -375

Divide each side by '-3'.
x = 125

Simplifying
x = 125

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