7x+9x-84=63-5x

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Solution for 7x+9x-84=63-5x equation:


Simplifying
7x + 9x + -84 = 63 + -5x

Reorder the terms:
-84 + 7x + 9x = 63 + -5x

Combine like terms: 7x + 9x = 16x
-84 + 16x = 63 + -5x

Solving
-84 + 16x = 63 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-84 + 16x + 5x = 63 + -5x + 5x

Combine like terms: 16x + 5x = 21x
-84 + 21x = 63 + -5x + 5x

Combine like terms: -5x + 5x = 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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