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Simplifying
8 + -1(3x2 + 1) = 0
Reorder the terms:
8 + -1(1 + 3x2) = 0
8 + (1 * -1 + 3x2 * -1) = 0
8 + (-1 + -3x2) = 0
Combine like terms: 8 + -1 = 7
7 + -3x2 = 0
Solving
7 + -3x2 = 0
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 = 0 + -7
Combine like terms: 7 + -7 = 0
0 + -3x2 = 0 + -7
-3x2 = 0 + -7
Combine like terms: 0 + -7 = -7
-3x2 = -7
Divide each side by '-3'.
x2 = 2.333333333
Simplifying
x2 = 2.333333333
Take the square root of each side:
x = {-1.527525232, 1.527525232}
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