10x-21=7

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Solution for 10x-21=7 equation: 


Simplifying
10x + -21 = 7

Reorder the terms:
-21 + 10x = 7

Solving
-21 + 10x = 7

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 10x = 7 + 21

Combine like terms: -21 + 21 = 0
0 + 10x = 7 + 21
10x = 7 + 21

Combine like terms: 7 + 21 = 28
10x = 28

Divide each side by '10'.
x = 2.8

Simplifying
x = 2.8

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