20=7x+-4x

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


Simplifying
20 = 7x + -4x

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

Solving
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.
20 + -3x = 3x + -3x

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

Add '-20' to each side of the equation.
20 + -20 + -3x = 0 + -20

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

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

Divide each side by '-3'.
x = 6.666666667

Simplifying
x = 6.666666667

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