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Simplifying
7x2 + -12 = 23
Reorder the terms:
-12 + 7x2 = 23
Solving
-12 + 7x2 = 23
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '12' to each side of the equation.
-12 + 12 + 7x2 = 23 + 12
Combine like terms: -12 + 12 = 0
0 + 7x2 = 23 + 12
7x2 = 23 + 12
Combine like terms: 23 + 12 = 35
7x2 = 35
Divide each side by '7'.
x2 = 5
Simplifying
x2 = 5
Take the square root of each side:
x = {-2.236067978, 2.236067978}
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