2-(x-7)=21

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Solution for 2-(x-7)=21 equation:


Simplifying
2 + -1(x + -7) = 21

Reorder the terms:
2 + -1(-7 + x) = 21
2 + (-7 * -1 + x * -1) = 21
2 + (7 + -1x) = 21

Combine like terms: 2 + 7 = 9
9 + -1x = 21

Solving
9 + -1x = 21

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 + -1x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = 21 + -9
-1x = 21 + -9

Combine like terms: 21 + -9 = 12
-1x = 12

Divide each side by '-1'.
x = -12

Simplifying
x = -12

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