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Simplifying
7X2 + 5 = 18
Reorder the terms:
5 + 7X2 = 18
Solving
5 + 7X2 = 18
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + 7X2 = 18 + -5
Combine like terms: 5 + -5 = 0
0 + 7X2 = 18 + -5
7X2 = 18 + -5
Combine like terms: 18 + -5 = 13
7X2 = 13
Divide each side by '7'.
X2 = 1.857142857
Simplifying
X2 = 1.857142857
Take the square root of each side:
X = {-1.362770288, 1.362770288}
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