5x+21-3x+21=6

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Solution for 5x+21-3x+21=6 equation:


Simplifying
5x + 21 + -3x + 21 = 6

Reorder the terms:
21 + 21 + 5x + -3x = 6

Combine like terms: 21 + 21 = 42
42 + 5x + -3x = 6

Combine like terms: 5x + -3x = 2x
42 + 2x = 6

Solving
42 + 2x = 6

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 2x = 6 + -42

Combine like terms: 42 + -42 = 0
0 + 2x = 6 + -42
2x = 6 + -42

Combine like terms: 6 + -42 = -36
2x = -36

Divide each side by '2'.
x = -18

Simplifying
x = -18

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