4x-7x=-20-1

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Solution for 4x-7x=-20-1 equation: 


Simplifying
4x + -7x = -20 + -1

Combine like terms: 4x + -7x = -3x
-3x = -20 + -1

Combine like terms: -20 + -1 = -21
-3x = -21

Solving
-3x = -21

Solving for variable 'x'.

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

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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