18x+84=147-3x

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Solution for 18x+84=147-3x equation:


Simplifying
18x + 84 = 147 + -3x

Reorder the terms:
84 + 18x = 147 + -3x

Solving
84 + 18x = 147 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
84 + 18x + 3x = 147 + -3x + 3x

Combine like terms: 18x + 3x = 21x
84 + 21x = 147 + -3x + 3x

Combine like terms: -3x + 3x = 0
84 + 21x = 147 + 0
84 + 21x = 147

Add '-84' to each side of the equation.
84 + -84 + 21x = 147 + -84

Combine like terms: 84 + -84 = 0
0 + 21x = 147 + -84
21x = 147 + -84

Combine like terms: 147 + -84 = 63
21x = 63

Divide each side by '21'.
x = 3

Simplifying
x = 3

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