78=x+x+3+2x-5

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Solution for 78=x+x+3+2x-5 equation: 


Simplifying
78 = x + x + 3 + 2x + -5

Reorder the terms:
78 = 3 + -5 + x + x + 2x

Combine like terms: 3 + -5 = -2
78 = -2 + x + x + 2x

Combine like terms: x + x = 2x
78 = -2 + 2x + 2x

Combine like terms: 2x + 2x = 4x
78 = -2 + 4x

Solving
78 = -2 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
78 + -4x = -2 + 4x + -4x

Combine like terms: 4x + -4x = 0
78 + -4x = -2 + 0
78 + -4x = -2

Add '-78' to each side of the equation.
78 + -78 + -4x = -2 + -78

Combine like terms: 78 + -78 = 0
0 + -4x = -2 + -78
-4x = -2 + -78

Combine like terms: -2 + -78 = -80
-4x = -80

Divide each side by '-4'.
x = 20

Simplifying
x = 20

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