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

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


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

Reorder the terms:
-9 + 7x = 4(3x + 4)

Reorder the terms:
-9 + 7x = 4(4 + 3x)
-9 + 7x = (4 * 4 + 3x * 4)
-9 + 7x = (16 + 12x)

Solving
-9 + 7x = 16 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-9 + 7x + -12x = 16 + 12x + -12x

Combine like terms: 7x + -12x = -5x
-9 + -5x = 16 + 12x + -12x

Combine like terms: 12x + -12x = 0
-9 + -5x = 16 + 0
-9 + -5x = 16

Add '9' to each side of the equation.
-9 + 9 + -5x = 16 + 9

Combine like terms: -9 + 9 = 0
0 + -5x = 16 + 9
-5x = 16 + 9

Combine like terms: 16 + 9 = 25
-5x = 25

Divide each side by '-5'.
x = -5

Simplifying
x = -5

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