8-20=3-4x

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Solution for 8-20=3-4x equation:


Simplifying
8 + -20 = 3 + -4x

Combine like terms: 8 + -20 = -12
-12 = 3 + -4x

Solving
-12 = 3 + -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.
-12 + 4x = 3 + -4x + 4x

Combine like terms: -4x + 4x = 0
-12 + 4x = 3 + 0
-12 + 4x = 3

Add '12' to each side of the equation.
-12 + 12 + 4x = 3 + 12

Combine like terms: -12 + 12 = 0
0 + 4x = 3 + 12
4x = 3 + 12

Combine like terms: 3 + 12 = 15
4x = 15

Divide each side by '4'.
x = 3.75

Simplifying
x = 3.75

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