7x-7=20+3x

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


Simplifying
7x + -7 = 20 + 3x

Reorder the terms:
-7 + 7x = 20 + 3x

Solving
-7 + 7x = 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.
-7 + 7x + -3x = 20 + 3x + -3x

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

Combine like terms: 3x + -3x = 0
-7 + 4x = 20 + 0
-7 + 4x = 20

Add '7' to each side of the equation.
-7 + 7 + 4x = 20 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 20 + 7
4x = 20 + 7

Combine like terms: 20 + 7 = 27
4x = 27

Divide each side by '4'.
x = 6.75

Simplifying
x = 6.75

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