4X+3(2X-3)=4X-9+(-2)21

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Solution for 4X+3(2X-3)=4X-9+(-2)21 equation:


Simplifying
4X + 3(2X + -3) = 4X + -9 + (-2) * 21

Reorder the terms:
4X + 3(-3 + 2X) = 4X + -9 + (-2) * 21
4X + (-3 * 3 + 2X * 3) = 4X + -9 + (-2) * 21
4X + (-9 + 6X) = 4X + -9 + (-2) * 21

Reorder the terms:
-9 + 4X + 6X = 4X + -9 + (-2) * 21

Combine like terms: 4X + 6X = 10X
-9 + 10X = 4X + -9 + (-2) * 21

Multiply -2 * 21
-9 + 10X = 4X + -9 + -42

Reorder the terms:
-9 + 10X = -9 + -42 + 4X

Combine like terms: -9 + -42 = -51
-9 + 10X = -51 + 4X

Solving
-9 + 10X = -51 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
-9 + 10X + -4X = -51 + 4X + -4X

Combine like terms: 10X + -4X = 6X
-9 + 6X = -51 + 4X + -4X

Combine like terms: 4X + -4X = 0
-9 + 6X = -51 + 0
-9 + 6X = -51

Add '9' to each side of the equation.
-9 + 9 + 6X = -51 + 9

Combine like terms: -9 + 9 = 0
0 + 6X = -51 + 9
6X = -51 + 9

Combine like terms: -51 + 9 = -42
6X = -42

Divide each side by '6'.
X = -7

Simplifying
X = -7

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