7x+9=4(x+9)

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


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

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

Reorder the terms:
9 + 7x = 4(9 + x)
9 + 7x = (9 * 4 + x * 4)
9 + 7x = (36 + 4x)

Solving
9 + 7x = 36 + 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 + 7x + -4x = 36 + 4x + -4x

Combine like terms: 7x + -4x = 3x
9 + 3x = 36 + 4x + -4x

Combine like terms: 4x + -4x = 0
9 + 3x = 36 + 0
9 + 3x = 36

Add '-9' to each side of the equation.
9 + -9 + 3x = 36 + -9

Combine like terms: 9 + -9 = 0
0 + 3x = 36 + -9
3x = 36 + -9

Combine like terms: 36 + -9 = 27
3x = 27

Divide each side by '3'.
x = 9

Simplifying
x = 9

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