7x-2x[9-2(x+5)]=

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Solution for 7x-2x[9-2(x+5)]= equation: 


Simplifying
7x + -2x[9 + -2(x + 5)] = 0

Reorder the terms:
7x + -2x[9 + -2(5 + x)] = 0
7x + -2x[9 + (5 * -2 + x * -2)] = 0
7x + -2x[9 + (-10 + -2x)] = 0

Combine like terms: 9 + -10 = -1
7x + -2x[-1 + -2x] = 0
7x + [-1 * -2x + -2x * -2x] = 0
7x + [2x + 4x2] = 0

Combine like terms: 7x + 2x = 9x
9x + 4x2 = 0

Solving
9x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x'.
x(9 + 4x) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

Subproblem 2
Set the factor '(9 + 4x)' equal to zero and attempt to solve:

Simplifying
9 + 4x = 0

Solving
9 + 4x = 0

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

Add '-9' to each side of the equation.
9 + -9 + 4x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = 0 + -9
4x = 0 + -9

Combine like terms: 0 + -9 = -9
4x = -9

Divide each side by '4'.
x = -2.25

Simplifying
x = -2.25
Solution
x = {0, -2.25}

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