777=(x+31)+4(x-40)+x

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Solution for 777=(x+31)+4(x-40)+x equation:


Simplifying
777 = (x + 31) + 4(x + -40) + x

Reorder the terms:
777 = (31 + x) + 4(x + -40) + x

Remove parenthesis around (31 + x)
777 = 31 + x + 4(x + -40) + x

Reorder the terms:
777 = 31 + x + 4(-40 + x) + x
777 = 31 + x + (-40 * 4 + x * 4) + x
777 = 31 + x + (-160 + 4x) + x

Reorder the terms:
777 = 31 + -160 + x + 4x + x

Combine like terms: 31 + -160 = -129
777 = -129 + x + 4x + x

Combine like terms: x + 4x = 5x
777 = -129 + 5x + x

Combine like terms: 5x + x = 6x
777 = -129 + 6x

Solving
777 = -129 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
777 + -6x = -129 + 6x + -6x

Combine like terms: 6x + -6x = 0
777 + -6x = -129 + 0
777 + -6x = -129

Add '-777' to each side of the equation.
777 + -777 + -6x = -129 + -777

Combine like terms: 777 + -777 = 0
0 + -6x = -129 + -777
-6x = -129 + -777

Combine like terms: -129 + -777 = -906
-6x = -906

Divide each side by '-6'.
x = 151

Simplifying
x = 151

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