7x+8x-84=63-6x

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Solution for 7x+8x-84=63-6x equation:


Simplifying
7x + 8x + -84 = 63 + -6x

Reorder the terms:
-84 + 7x + 8x = 63 + -6x

Combine like terms: 7x + 8x = 15x
-84 + 15x = 63 + -6x

Solving
-84 + 15x = 63 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
-84 + 15x + 6x = 63 + -6x + 6x

Combine like terms: 15x + 6x = 21x
-84 + 21x = 63 + -6x + 6x

Combine like terms: -6x + 6x = 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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