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Simplifying
7x2 + 11 = 74
Reorder the terms:
11 + 7x2 = 74
Solving
11 + 7x2 = 74
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + 7x2 = 74 + -11
Combine like terms: 11 + -11 = 0
0 + 7x2 = 74 + -11
7x2 = 74 + -11
Combine like terms: 74 + -11 = 63
7x2 = 63
Divide each side by '7'.
x2 = 9
Simplifying
x2 = 9
Take the square root of each side:
x = {-3, 3}
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