4x+3=x+84

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Solution for 4x+3=x+84 equation:


Simplifying
4x + 3 = x + 84

Reorder the terms:
3 + 4x = x + 84

Reorder the terms:
3 + 4x = 84 + x

Solving
3 + 4x = 84 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3 + 4x + -1x = 84 + x + -1x

Combine like terms: 4x + -1x = 3x
3 + 3x = 84 + x + -1x

Combine like terms: x + -1x = 0
3 + 3x = 84 + 0
3 + 3x = 84

Add '-3' to each side of the equation.
3 + -3 + 3x = 84 + -3

Combine like terms: 3 + -3 = 0
0 + 3x = 84 + -3
3x = 84 + -3

Combine like terms: 84 + -3 = 81
3x = 81

Divide each side by '3'.
x = 27

Simplifying
x = 27

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