8y+(X+9)=90

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Solution for 8y+(X+9)=90 equation:


Simplifying
8y + (X + 9) = 90

Reorder the terms:
8y + (9 + X) = 90

Remove parenthesis around (9 + X)
8y + 9 + X = 90

Reorder the terms:
9 + X + 8y = 90

Solving
9 + X + 8y = 90

Solving for variable 'X'.

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

Add '-9' to each side of the equation.
9 + X + -9 + 8y = 90 + -9

Reorder the terms:
9 + -9 + X + 8y = 90 + -9

Combine like terms: 9 + -9 = 0
0 + X + 8y = 90 + -9
X + 8y = 90 + -9

Combine like terms: 90 + -9 = 81
X + 8y = 81

Add '-8y' to each side of the equation.
X + 8y + -8y = 81 + -8y

Combine like terms: 8y + -8y = 0
X + 0 = 81 + -8y
X = 81 + -8y

Simplifying
X = 81 + -8y

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