90=3x+(y+7)

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Solution for 90=3x+(y+7) equation:


Simplifying
90 = 3x + (y + 7)

Reorder the terms:
90 = 3x + (7 + y)

Remove parenthesis around (7 + y)
90 = 3x + 7 + y

Reorder the terms:
90 = 7 + 3x + y

Solving
90 = 7 + 3x + y

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.
90 + -3x = 7 + 3x + -3x + y

Combine like terms: 3x + -3x = 0
90 + -3x = 7 + 0 + y
90 + -3x = 7 + y

Add '-90' to each side of the equation.
90 + -90 + -3x = 7 + -90 + y

Combine like terms: 90 + -90 = 0
0 + -3x = 7 + -90 + y
-3x = 7 + -90 + y

Combine like terms: 7 + -90 = -83
-3x = -83 + y

Divide each side by '-3'.
x = 27.66666667 + -0.3333333333y

Simplifying
x = 27.66666667 + -0.3333333333y

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