8+9=x-3

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Solution for 8+9=x-3 equation:


Simplifying
8 + 9 = x + -3

Combine like terms: 8 + 9 = 17
17 = x + -3

Reorder the terms:
17 = -3 + x

Solving
17 = -3 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
17 + -1x = -3 + x + -1x

Combine like terms: x + -1x = 0
17 + -1x = -3 + 0
17 + -1x = -3

Add '-17' to each side of the equation.
17 + -17 + -1x = -3 + -17

Combine like terms: 17 + -17 = 0
0 + -1x = -3 + -17
-1x = -3 + -17

Combine like terms: -3 + -17 = -20
-1x = -20

Divide each side by '-1'.
x = 20

Simplifying
x = 20

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