x+y+1+y=9

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Solution for x+y+1+y=9 equation:


Simplifying
x + y + 1 + y = 9

Reorder the terms:
1 + x + y + y = 9

Combine like terms: y + y = 2y
1 + x + 2y = 9

Solving
1 + x + 2y = 9

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 + x + -1 + 2y = 9 + -1

Reorder the terms:
1 + -1 + x + 2y = 9 + -1

Combine like terms: 1 + -1 = 0
0 + x + 2y = 9 + -1
x + 2y = 9 + -1

Combine like terms: 9 + -1 = 8
x + 2y = 8

Add '-2y' to each side of the equation.
x + 2y + -2y = 8 + -2y

Combine like terms: 2y + -2y = 0
x + 0 = 8 + -2y
x = 8 + -2y

Simplifying
x = 8 + -2y

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