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Simplifying
9x2 + -19 = 26
Reorder the terms:
-19 + 9x2 = 26
Solving
-19 + 9x2 = 26
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '19' to each side of the equation.
-19 + 19 + 9x2 = 26 + 19
Combine like terms: -19 + 19 = 0
0 + 9x2 = 26 + 19
9x2 = 26 + 19
Combine like terms: 26 + 19 = 45
9x2 = 45
Divide each side by '9'.
x2 = 5
Simplifying
x2 = 5
Take the square root of each side:
x = {-2.236067978, 2.236067978}
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