4(x+9)=7x-9

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


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

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

Reorder the terms:
36 + 4x = -9 + 7x

Solving
36 + 4x = -9 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
36 + 4x + -7x = -9 + 7x + -7x

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

Combine like terms: 7x + -7x = 0
36 + -3x = -9 + 0
36 + -3x = -9

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

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

Combine like terms: -9 + -36 = -45
-3x = -45

Divide each side by '-3'.
x = 15

Simplifying
x = 15

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