2x+4*40=720

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Solution for 2x+4*40=720 equation: 


Simplifying
2x + 4 * 40 = 720

Multiply 4 * 40
2x + 160 = 720

Reorder the terms:
160 + 2x = 720

Solving
160 + 2x = 720

Solving for variable 'x'.

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

Add '-160' to each side of the equation.
160 + -160 + 2x = 720 + -160

Combine like terms: 160 + -160 = 0
0 + 2x = 720 + -160
2x = 720 + -160

Combine like terms: 720 + -160 = 560
2x = 560

Divide each side by '2'.
x = 280

Simplifying
x = 280

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