4(x+9)=20

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Solution for 4(x+9)=20 equation: 


Simplifying
4(x + 9) = 20

Reorder the terms:
4(9 + x) = 20
(9 * 4 + x * 4) = 20
(36 + 4x) = 20

Solving
36 + 4x = 20

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + 4x = 20 + -36

Combine like terms: 36 + -36 = 0
0 + 4x = 20 + -36
4x = 20 + -36

Combine like terms: 20 + -36 = -16
4x = -16

Divide each side by '4'.
x = -4

Simplifying
x = -4

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