10x+6-3x=21

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Solution for 10x+6-3x=21 equation:


Simplifying
10x + 6 + -3x = 21

Reorder the terms:
6 + 10x + -3x = 21

Combine like terms: 10x + -3x = 7x
6 + 7x = 21

Solving
6 + 7x = 21

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 + 7x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 7x = 21 + -6
7x = 21 + -6

Combine like terms: 21 + -6 = 15
7x = 15

Divide each side by '7'.
x = 2.142857143

Simplifying
x = 2.142857143

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