6-4(2x+3)+3=21

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Solution for 6-4(2x+3)+3=21 equation:


Simplifying
6 + -4(2x + 3) + 3 = 21

Reorder the terms:
6 + -4(3 + 2x) + 3 = 21
6 + (3 * -4 + 2x * -4) + 3 = 21
6 + (-12 + -8x) + 3 = 21

Reorder the terms:
6 + -12 + 3 + -8x = 21

Combine like terms: 6 + -12 = -6
-6 + 3 + -8x = 21

Combine like terms: -6 + 3 = -3
-3 + -8x = 21

Solving
-3 + -8x = 21

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -8x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + -8x = 21 + 3
-8x = 21 + 3

Combine like terms: 21 + 3 = 24
-8x = 24

Divide each side by '-8'.
x = -3

Simplifying
x = -3

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