7x-21+12=-8

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Solution for 7x-21+12=-8 equation:


Simplifying
7x + -21 + 12 = -8

Reorder the terms:
-21 + 12 + 7x = -8

Combine like terms: -21 + 12 = -9
-9 + 7x = -8

Solving
-9 + 7x = -8

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 7x = -8 + 9

Combine like terms: -9 + 9 = 0
0 + 7x = -8 + 9
7x = -8 + 9

Combine like terms: -8 + 9 = 1
7x = 1

Divide each side by '7'.
x = 0.1428571429

Simplifying
x = 0.1428571429

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