3x+4[-3(2x+4)]=99

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Solution for 3x+4[-3(2x+4)]=99 equation:


Simplifying
3x + 4[-3(2x + 4)] = 99

Reorder the terms:
3x + 4[-3(4 + 2x)] = 99
3x + 4[(4 * -3 + 2x * -3)] = 99
3x + 4[(-12 + -6x)] = 99
3x + [-12 * 4 + -6x * 4] = 99
3x + [-48 + -24x] = 99

Reorder the terms:
-48 + 3x + -24x = 99

Combine like terms: 3x + -24x = -21x
-48 + -21x = 99

Solving
-48 + -21x = 99

Solving for variable 'x'.

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

Add '48' to each side of the equation.
-48 + 48 + -21x = 99 + 48

Combine like terms: -48 + 48 = 0
0 + -21x = 99 + 48
-21x = 99 + 48

Combine like terms: 99 + 48 = 147
-21x = 147

Divide each side by '-21'.
x = -7

Simplifying
x = -7

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