4x+9x-84=63-8x

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Solution for 4x+9x-84=63-8x equation:


Simplifying
4x + 9x + -84 = 63 + -8x

Reorder the terms:
-84 + 4x + 9x = 63 + -8x

Combine like terms: 4x + 9x = 13x
-84 + 13x = 63 + -8x

Solving
-84 + 13x = 63 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
-84 + 13x + 8x = 63 + -8x + 8x

Combine like terms: 13x + 8x = 21x
-84 + 21x = 63 + -8x + 8x

Combine like terms: -8x + 8x = 0
-84 + 21x = 63 + 0
-84 + 21x = 63

Add '84' to each side of the equation.
-84 + 84 + 21x = 63 + 84

Combine like terms: -84 + 84 = 0
0 + 21x = 63 + 84
21x = 63 + 84

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

Divide each side by '21'.
x = 7

Simplifying
x = 7

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