4x+45=x+84

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Solution for 4x+45=x+84 equation:


Simplifying
4x + 45 = x + 84

Reorder the terms:
45 + 4x = x + 84

Reorder the terms:
45 + 4x = 84 + x

Solving
45 + 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.
45 + 4x + -1x = 84 + x + -1x

Combine like terms: 4x + -1x = 3x
45 + 3x = 84 + x + -1x

Combine like terms: x + -1x = 0
45 + 3x = 84 + 0
45 + 3x = 84

Add '-45' to each side of the equation.
45 + -45 + 3x = 84 + -45

Combine like terms: 45 + -45 = 0
0 + 3x = 84 + -45
3x = 84 + -45

Combine like terms: 84 + -45 = 39
3x = 39

Divide each side by '3'.
x = 13

Simplifying
x = 13

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