4+7=3x-20

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Solution for 4+7=3x-20 equation: 


Simplifying
4 + 7 = 3x + -20

Combine like terms: 4 + 7 = 11
11 = 3x + -20

Reorder the terms:
11 = -20 + 3x

Solving
11 = -20 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
11 + -3x = -20 + 3x + -3x

Combine like terms: 3x + -3x = 0
11 + -3x = -20 + 0
11 + -3x = -20

Add '-11' to each side of the equation.
11 + -11 + -3x = -20 + -11

Combine like terms: 11 + -11 = 0
0 + -3x = -20 + -11
-3x = -20 + -11

Combine like terms: -20 + -11 = -31
-3x = -31

Divide each side by '-3'.
x = 10.33333333

Simplifying
x = 10.33333333

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