2y-x+7=9-x

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Solution for 2y-x+7=9-x equation:


Simplifying
2y + -1x + 7 = 9 + -1x

Reorder the terms:
7 + -1x + 2y = 9 + -1x

Add 'x' to each side of the equation.
7 + -1x + x + 2y = 9 + -1x + x

Combine like terms: -1x + x = 0
7 + 0 + 2y = 9 + -1x + x
7 + 2y = 9 + -1x + x

Combine like terms: -1x + x = 0
7 + 2y = 9 + 0
7 + 2y = 9

Solving
7 + 2y = 9

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + 2y = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 2y = 9 + -7
2y = 9 + -7

Combine like terms: 9 + -7 = 2
2y = 2

Divide each side by '2'.
y = 1

Simplifying
y = 1

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