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Simplifying
3x2 + 18 + -11 = 154
Reorder the terms:
18 + -11 + 3x2 = 154
Combine like terms: 18 + -11 = 7
7 + 3x2 = 154
Solving
7 + 3x2 = 154
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 3x2 = 154 + -7
Combine like terms: 7 + -7 = 0
0 + 3x2 = 154 + -7
3x2 = 154 + -7
Combine like terms: 154 + -7 = 147
3x2 = 147
Divide each side by '3'.
x2 = 49
Simplifying
x2 = 49
Take the square root of each side:
x = {-7, 7}
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