18x^2+7-[8(x^2-6)+9]=

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Solution for 18x^2+7-[8(x^2-6)+9]= equation:


Simplifying
18x2 + 7 + -1[8(x2 + -6) + 9] = 0

Reorder the terms:
18x2 + 7 + -1[8(-6 + x2) + 9] = 0
18x2 + 7 + -1[(-6 * 8 + x2 * 8) + 9] = 0
18x2 + 7 + -1[(-48 + 8x2) + 9] = 0

Reorder the terms:
18x2 + 7 + -1[-48 + 9 + 8x2] = 0

Combine like terms: -48 + 9 = -39
18x2 + 7 + -1[-39 + 8x2] = 0
18x2 + 7 + [-39 * -1 + 8x2 * -1] = 0
18x2 + 7 + [39 + -8x2] = 0

Reorder the terms:
7 + 39 + 18x2 + -8x2 = 0

Combine like terms: 7 + 39 = 46
46 + 18x2 + -8x2 = 0

Combine like terms: 18x2 + -8x2 = 10x2
46 + 10x2 = 0

Solving
46 + 10x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-46' to each side of the equation.
46 + -46 + 10x2 = 0 + -46

Combine like terms: 46 + -46 = 0
0 + 10x2 = 0 + -46
10x2 = 0 + -46

Combine like terms: 0 + -46 = -46
10x2 = -46

Divide each side by '10'.
x2 = -4.6

Simplifying
x2 = -4.6

Reorder the terms:
4.6 + x2 = -4.6 + 4.6

Combine like terms: -4.6 + 4.6 = 0.0
4.6 + x2 = 0.0

The solution to this equation could not be determined.

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