3x+21+5x-15=22

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Solution for 3x+21+5x-15=22 equation:


Simplifying
3x + 21 + 5x + -15 = 22

Reorder the terms:
21 + -15 + 3x + 5x = 22

Combine like terms: 21 + -15 = 6
6 + 3x + 5x = 22

Combine like terms: 3x + 5x = 8x
6 + 8x = 22

Solving
6 + 8x = 22

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 8x = 22 + -6

Combine like terms: 6 + -6 = 0
0 + 8x = 22 + -6
8x = 22 + -6

Combine like terms: 22 + -6 = 16
8x = 16

Divide each side by '8'.
x = 2

Simplifying
x = 2

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