4[5-(-9)(4)+2]=x

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Solution for 4[5-(-9)(4)+2]=x equation:


Simplifying
4[5 + -1(-9)(4) + 2] = x

Multiply -1 * -9
4[5 + 9 * 4 + 2] = x

Multiply 9 * 4
4[5 + 36 + 2] = x

Combine like terms: 5 + 36 = 41
4[41 + 2] = x

Combine like terms: 41 + 2 = 43
4[43] = x

Multiply 4 * 43
172 = x

Solving
172 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
172 + -1x = x + -1x

Combine like terms: x + -1x = 0
172 + -1x = 0

Add '-172' to each side of the equation.
172 + -172 + -1x = 0 + -172

Combine like terms: 172 + -172 = 0
0 + -1x = 0 + -172
-1x = 0 + -172

Combine like terms: 0 + -172 = -172
-1x = -172

Divide each side by '-1'.
x = 172

Simplifying
x = 172

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