x+x+(x+20)+(x+20)+(x-70)=720

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Solution for x+x+(x+20)+(x+20)+(x-70)=720 equation:


Simplifying
x + x + (x + 20) + (x + 20) + (x + -70) = 720

Reorder the terms:
x + x + (20 + x) + (x + 20) + (x + -70) = 720

Remove parenthesis around (20 + x)
x + x + 20 + x + (x + 20) + (x + -70) = 720

Reorder the terms:
x + x + 20 + x + (20 + x) + (x + -70) = 720

Remove parenthesis around (20 + x)
x + x + 20 + x + 20 + x + (x + -70) = 720

Reorder the terms:
x + x + 20 + x + 20 + x + (-70 + x) = 720

Remove parenthesis around (-70 + x)
x + x + 20 + x + 20 + x + -70 + x = 720

Reorder the terms:
20 + 20 + -70 + x + x + x + x + x = 720

Combine like terms: 20 + 20 = 40
40 + -70 + x + x + x + x + x = 720

Combine like terms: 40 + -70 = -30
-30 + x + x + x + x + x = 720

Combine like terms: x + x = 2x
-30 + 2x + x + x + x = 720

Combine like terms: 2x + x = 3x
-30 + 3x + x + x = 720

Combine like terms: 3x + x = 4x
-30 + 4x + x = 720

Combine like terms: 4x + x = 5x
-30 + 5x = 720

Solving
-30 + 5x = 720

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 5x = 720 + 30

Combine like terms: -30 + 30 = 0
0 + 5x = 720 + 30
5x = 720 + 30

Combine like terms: 720 + 30 = 750
5x = 750

Divide each side by '5'.
x = 150

Simplifying
x = 150

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