3x+6-y-7=20

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Solution for 3x+6-y-7=20 equation:


Simplifying
3x + 6 + -1y + -7 = 20

Reorder the terms:
6 + -7 + 3x + -1y = 20

Combine like terms: 6 + -7 = -1
-1 + 3x + -1y = 20

Solving
-1 + 3x + -1y = 20

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 3x + 1 + -1y = 20 + 1

Reorder the terms:
-1 + 1 + 3x + -1y = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 3x + -1y = 20 + 1
3x + -1y = 20 + 1

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

Add 'y' to each side of the equation.
3x + -1y + y = 21 + y

Combine like terms: -1y + y = 0
3x + 0 = 21 + y
3x = 21 + y

Divide each side by '3'.
x = 7 + 0.3333333333y

Simplifying
x = 7 + 0.3333333333y

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