4x-7(3x+6)=4x-9

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Solution for 4x-7(3x+6)=4x-9 equation:


Simplifying
4x + -7(3x + 6) = 4x + -9

Reorder the terms:
4x + -7(6 + 3x) = 4x + -9
4x + (6 * -7 + 3x * -7) = 4x + -9
4x + (-42 + -21x) = 4x + -9

Reorder the terms:
-42 + 4x + -21x = 4x + -9

Combine like terms: 4x + -21x = -17x
-42 + -17x = 4x + -9

Reorder the terms:
-42 + -17x = -9 + 4x

Solving
-42 + -17x = -9 + 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.
-42 + -17x + -4x = -9 + 4x + -4x

Combine like terms: -17x + -4x = -21x
-42 + -21x = -9 + 4x + -4x

Combine like terms: 4x + -4x = 0
-42 + -21x = -9 + 0
-42 + -21x = -9

Add '42' to each side of the equation.
-42 + 42 + -21x = -9 + 42

Combine like terms: -42 + 42 = 0
0 + -21x = -9 + 42
-21x = -9 + 42

Combine like terms: -9 + 42 = 33
-21x = 33

Divide each side by '-21'.
x = -1.571428571

Simplifying
x = -1.571428571

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