6-4(9+x)=20

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Solution for 6-4(9+x)=20 equation:


Simplifying
6 + -4(9 + x) = 20
6 + (9 * -4 + x * -4) = 20
6 + (-36 + -4x) = 20

Combine like terms: 6 + -36 = -30
-30 + -4x = 20

Solving
-30 + -4x = 20

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + -4x = 20 + 30

Combine like terms: -30 + 30 = 0
0 + -4x = 20 + 30
-4x = 20 + 30

Combine like terms: 20 + 30 = 50
-4x = 50

Divide each side by '-4'.
x = -12.5

Simplifying
x = -12.5

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