x^2+4=17-4

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Solution for x^2+4=17-4 equation: 


Simplifying
x2 + 4 = 17 + -4

Reorder the terms:
4 + x2 = 17 + -4

Combine like terms: 17 + -4 = 13
4 + x2 = 13

Solving
4 + x2 = 13

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + x2 = 13 + -4

Combine like terms: 4 + -4 = 0
0 + x2 = 13 + -4
x2 = 13 + -4

Combine like terms: 13 + -4 = 9
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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